Document And Entity Information
Dividend yield
Note To Financial Statement Details Textual
Significant Accounting Policies
Note 3 - Significant Accounting Policies
Income tax expense/(benefit) at statutory rate, amount
us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
Note 4 - Other Financial Information
Note 5 - Inventories
Risk-free interest rate, maximum
Maturities within one year
us-gaap_SecuredLongTermDebt
Secured Long-Term Debt, Noncurrent
Note 6 - Fair Value Measurements
Note 7 - Investments
Note 8 - Property and Equipment
Liabilities, Noncurrent [Abstract]
Long-Term Purchase Commitment [Table]
Note 9 - Prepaid Forward Obligation
Note 10 - Long-term Debt
Pharmakon Loan [Member]
Represents Pharmakon loan.
urgn_StockIssuedDuringPeriodNewIssuesSalesCommissionPercentage
Stock Issued During Period, New Issues, Sales Commission Percentage
Represents the percentage of sales commission paid related to the issuance of new stock during the period.
Income Tax Disclosure [Text Block]
Note 11 - Leases
Risk-free interest rate, minimum
Note 12 - Revenue From Product Sales
Unrealized income (loss) on investments
Note 17 - Share-Based Compensation
Expected volatility, minimum
Note 18 - Income Taxes
Note 21 - Segment Reporting
Expected volatility, maximum
us-gaap_LiabilitiesCurrent
Total current liabilities:
ATM Prospectus [Member]
Represents ATM Prospectus.
Schedule of Maturities of Long-Term Debt [Table Text Block]
Note 3 - Significant Accounting Policies - Useful Lives of Property and Equipment (Details)
Note 3 - Significant Accounting Policies - Schedule of Calculation of Basic and Diluted Loss Per Common Share (Details)
Note 4 - Other Financial Information - Accounts Payable and Accrued Expense (Details)
Other Liabilities, Current
Expected term (in years) (Year)
Note 4 - Other Financial Information - Interest and Other Income (Expense), Net (Details)
Note 5 - Inventories - Inventories (Details)
Note 6 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details)
Note 7 - Investments - Summary of Marketable Securities (Details)
Note 7 - Investments - Fair Values of Marketable Securities by Contractual Maturity (Details)
Note 8 - Property and Equipment - Property and Equipment (Details)
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Note 9 - Prepaid Forward Obligation - Activity in the Carrying Value of the Prepaid Forward Liability (Details)
Note 10 - Long-term Debt - Long Term Debt (Details)
Note 10 - Long-Term Debt - Schedule of Debt Principal Maturities (Details)
Note 11 - Leases - Components of Lease Cost (Details)
Note 11 - Leases - Amounts of Assets and Liabilities (Details)
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
Note 11 - Leases - Amounts of Assets and Liabilities (Details) (Parentheticals)
Note 11 - Leases - Supplemental Information Related to Leases (Details)
Granted, RSU, weighted average grant date fair value (in dollars per share)
Note 11 - Leases - Maturities of Finance Lease Liabilities (Details)
Vested and released, RSU, weighted average grant date fair value (in dollars per share)
Note 11 - Leases - Maturities of Operating Lease Liabilities (Details)
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
Note 12 - Revenue From Product Sales - Net Product Sales (Details)
Forfeited, RSU, weighted average grant date fair value (in dollars per share)
Note 12 - Revenue From Product Sales - Sales Reserves Activity (Details)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
Outstanding, RSU, weighted average grant date fair value (in dollars per share)
Outstanding, RSU, weighted average grant date fair value (in dollars per share)
US Treasury Securities [Member]
urgn_PolicyTable
Note 17 - Share-Based Compensation - Fair Value of Options Granted Valuation Assumption (Details)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
Forfeited, RSU, units (in shares)
Note 17 - Share-Based Compensation - Number of Employee and Non-employee Options Outstanding (Details)
Note 17 - Share-Based Compensation - Summary of RSU Activity (Details)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Outstanding, RSU, units (in shares)
Outstanding, RSU, units (in shares)
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Note 17 - Share-Based Compensation - Effect of Share-based Compensation on the Condensed Consolidated Statements of Operations (Details)
Note 18 - Income Taxes - Summary of Current Income Taxes Expenses (Details)
Note 18 - Income Taxes - Components of Deferred Tax Assets (Details)
Granted, RSU, units (in shares)
Note 18 - Income Taxes - Changes in Valuation Allowance (Details)
Maturities of marketable securities
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
Vested and released, RSU, units (in shares)
Note 18 - Income Taxes - Reconciliation of Statutory Tax Rate to Effective Tax (Details)
Corporate Debt Securities [Member]
Vested and expected to vest, weighted average remaining contractual life (Year)
Note 18 - Income Taxes - Reconciliation of Uncertain Tax Positions (Details)
Note 21 - Segment Reporting - Segment Expenses (Details)
Notes To Financial Statements
Vested and expected to vest, aggregate intrinsic value
Other comprehensive loss
Notes To Financial Statements [Abstract]
Vested and expected to vest (in shares)
Vested and expected to vest, weighted average price per share (in dollars per share)
Exercisable, weighted average price per share (in dollars per share)
Exercisable, weighted average remaining contractual life (Year)
Exercisable, aggregate intrinsic value
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value
Exercisable (in shares)
Outstanding, weighted average remaining contractual life (Year)
Outstanding, aggregate intrinsic value
New Hampshire Tax Authority [Member]
Represents New Hampshire tax authority.
urgn_PercentageOfTotalCashTaxesPaid
Percentage of Total Cash Taxes Paid
Represents the percentage of total cash taxes paid.
us-gaap_PaymentsToAcquireMarketableSecurities
Purchases of marketable securities
Financial Instruments [Domain]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
Outstanding, weighted average price per share (in dollars per share)
Outstanding, weighted average price per share (in dollars per share)
Accounts payable and accrued expenses
Total accounts payable and accrued expenses
Forfeited, weighted average price per share (in dollars per share)
Financial Instrument [Axis]
Granted, weighted average price per share (in dollars per share)
Exercised, weighted average price per share (in dollars per share)
Employee related accrued expenses
Lessee, Operating Leases [Text Block]
urgn_EffectiveIncomeTaxRateReconciliationNontaxableOrNondeductibleItemsForeignAmount
Nontaxable or nondeductible items in foreign jurisdictions, amount
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign nontaxable or nondeductible items.
Accounts payable
Secured Debt [Member]
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
Outstanding, number of options (in shares)
Outstanding, number of options (in shares)
urgn_EffectiveIncomeTaxRateReconciliationNontaxableOrNondeductibleItemsForeignPercent
Nontaxable or nondeductible items in foreign jurisdictions, percent
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign nontaxable or nondeductible items.
Accrued other expenses
Nondeductible financing cost on prepaid forward obligation, amount
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to the nondeductible expense related to financing cost on prepaid forward obligation..
Changes in unrecognized tax benefits in foreign jurisdictions, amount
urgn_EffectiveIncomeTaxRateReconciliationChangesInUnrecognizedTaxAmountBenefitsForeignAmount
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in foreign unrecognized tax benefits.
Other nontaxable or nondeductible items, amount
Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nontaxable or nondeductible items.
us-gaap_PolicyTextBlockAbstract
Accounting Policies
urgn_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseFinancingCostOnPrepaidForwardObligationPercent
Nondeductible financing cost on prepaid forward obligation, percent
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses related to financing cost on prepaid forward obligations.
urgn_EffectiveIncomeTaxRateReconciliationChangesInUnrecognizedTaxAmountBenefitsForeignPercent
Changes in unrecognized tax benefits in foreign jurisdictions, percent
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in foreign unrecognized tax benefits.
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)
urgn_EffectiveIncomeTaxRateReconciliationNontaxableOrNondeductibleItemsOtherPercent
Other nontaxable or nondeductible items, percent
Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nontaxable or nondeductible items.
Debt Securities, Available-for-Sale [Table]
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent
us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Purchases of property and equipment
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in shares)
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)
us-gaap_IncomeTaxesPaidNet
Income Taxes Paid, Net
us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage
Liabilities, Current [Abstract]
Vesting [Axis]
Vesting [Domain]
us-gaap_IncreaseDecreaseInOperatingLeaseLiability
Lease liabilities
Share-Based Payment Arrangement, Tranche One [Member]
us-gaap_Assets
Total Assets
us-gaap_OperatingLeaseImpairmentLoss
Operating Lease, Impairment Loss
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Plan Name [Axis]
Plan Name [Domain]
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)
us-gaap_SubleaseIncome
Sublease income
Restricted deposit
urgn_IncreaseDecreaseInRestrictedDeposits
The increase (decrease) during the reporting period in restricted deposits.
Share-Based Payment Arrangement [Text Block]
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
urgn_PrepaidForwardAgreementCumulativeAmountPaidAndPayable
Prepaid Forward Agreement, Cumulative Amount Paid and Payable
Represents the cumulative amount paid and payable for a prepaid forward agreement.
Award Type [Domain]
Effective Income Tax Rate Reconciliation [Table]
Medicare Refunds for Discarded Drug Reserve [Member]
Represents information pertaining to Medicare refunds for discarded drugs reserve.
Award Type [Axis]
Net loss
Net Loss
Loss attributable to equity holders of the Company
Restricted Stock Units (RSUs) [Member]
urgn_EquitySaleSharesIssuable
Equity Sale, Shares Issuable (in shares)
Represents the shares issuable under an equity sale.
Prefunded Warrants Associated With Public Offering [Member]
Represents information pertaining to prefunded warrants associated with public offerings.
Share-Based Payment Arrangement, Option [Member]
Loss Contingencies [Table]
Business Combination [Text Block]
Commitments and Contingencies Disclosure [Text Block]
us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Less: accumulated depreciation and amortization
Property and equipment, net
Property and equipment, net
Property and equipment, gross
Long-Term Debt, Type [Axis]
Long-Term Debt, Type [Domain]
us-gaap_Investments
Total investments
urgn_OperatingLossCarryforwardsPriorToTaxEffectingCarryforwardTaxLosses
Operating Loss Carryforwards, Prior to Tax Effecting Carryforward Tax Losses
The amount of operating loss carryforwards prior to tax effecting carryforward tax losses.
Cash Flows From Investing Activities
Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table]
Fair value
us-gaap_AvailableForSaleSecuritiesDebtSecurities
Fair value
Investment Income [Table]
Related Party Transaction [Table]
Accounts payable and accrued expenses
us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities
us-gaap_DeferredFinanceCostsGross
Debt Issuance Costs, Gross
Capitalized costs and discounts
us-gaap_RelatedPartyTransactionAmountsOfTransaction
Related Party Transaction, Amounts of Transaction
Employee related accrued expenses
us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities
Related Party Transactions Disclosure [Text Block]
us-gaap_IncomeTaxExpenseBenefit
Income tax expense
Income tax expense, amount
Travel, meetings & conferences
us-gaap_TravelAndEntertainmentExpense
Cash and cash equivalents
Cash equivalents
Other current liabilities
Employee compensation
us-gaap_LaborAndRelatedExpense
Share-based compensation
us-gaap_AllocatedShareBasedCompensationExpense
Amendment Flag
Statements of Comprehensive Loss
us-gaap_ComprehensiveIncomeNetOfTax
Comprehensive Loss
City Area Code
Use of Estimates, Policy [Policy Text Block]
New Accounting Pronouncements, Policy [Policy Text Block]
us-gaap_SharesOutstanding
Balance (in shares)
Balance (in shares)
Ordinary shares, outstanding (in shares)
Common Stock, Shares, Outstanding (in shares)
Current Fiscal Year End Date
us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Debt Instrument, Basis Spread on Variable Rate
us-gaap_DebtInstrumentInterestRateStatedPercentage
Debt Instrument, Interest Rate, Stated Percentage
Variable lease cost
us-gaap_LeaseCost
Lease, Cost
us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets
Prepaid expenses and other current assets
Basis of Accounting [Text Block]
Weighted-average discount rate of operating leases
Document Fiscal Period Focus
Operating lease cost
Document Fiscal Year Focus
Consolidation, Policy [Policy Text Block]
Lease, Cost [Table Text Block]
Right-of-use assets obtained in exchange for new finance lease liabilities
Document Period End Date
Right-of-use assets obtained in exchange for new operating lease liabilities
Weighted-average remaining lease term of operating leases (Year)
Entity File Number
Entity Emerging Growth Company
Acquisitions of IPR&D
The amount of in-process research and development expense.
Document Type
Entity Small Business
Entity Shell Company
Document Information [Line Items]
Document Information [Table]
Entity Public Float
us-gaap_SeveranceCosts1
Severance Costs
Entity Filer Category
Debt Instrument [Axis]
Acquisitions of IPR&D
urgn_NoncashInprocessResearchAndDevelopmentExpense
The amount of non-cash in-process research and development expense.
Entity Current Reporting Status
Debt Instrument, Name [Domain]
Entity Voluntary Filers
Entity Well-known Seasoned Issuer
Variable Rate [Domain]
Award Timing MNPI Disclosure [Text Block]
Schedule of Long-Term Debt Instruments [Table Text Block]
Schedule of Long-Term Debt Instruments [Table]
Issuance of pre-funded warrants, net of issuance costs
Variable Rate [Axis]
us-gaap_ConcentrationRiskPercentage1
Concentration Risk, Percentage
us-gaap_IncreaseDecreaseInAccountsReceivable
Accounts receivable, net
Share-based compensation
ecd_AwardTmgMnpiCnsdrdFlag
Award Timing MNPI Considered [Flag]
Debt Securities, Held-to-Maturity [Table]
Entity Tax Identification Number
Entity Central Index Key
Insider Trading Policies and Procedures [Line Items]
Entity Registrant Name
ecd_InsiderTrdPoliciesProcAdoptedFlag
Insider Trading Policies and Procedures Adopted [Flag]
Entity [Domain]
Legal Entity [Axis]
Customer Concentration Risk [Member]
Zusduri [Member]
Zusduri
Entity Address, Address Line One
ecd_NonRule10b51ArrTrmntdFlag
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Entity Address, City or Town
ecd_Rule10b51ArrTrmntdFlag
Rule 10b5-1 Arrangement Terminated [Flag]
ecd_Rule10b51ArrAdoptedFlag
Rule 10b5-1 Arrangement Adopted [Flag]
Entity Address, Postal Zip Code
Entity Address, State or Province
Concentration Risk Type [Axis]
ecd_NonRule10b51ArrAdoptedFlag
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Concentration Risk Type [Domain]
Material Terms of Trading Arrangement [Text Block]
Entity Common Stock, Shares Outstanding
Trading Arrangements, by Individual [Table]
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Marketable Securities [Table Text Block]
Commercial & medical affairs services
us-gaap_MarketingAndAdvertisingExpense
Revenue Benchmark [Member]
Accounts Receivable [Member]
us-gaap_IncreaseDecreaseInOtherNoncurrentAssets
Other non-current assets
Professional services
us-gaap_ProfessionalFees
Rent, office, utilities & technology
us-gaap_CommunicationsInformationTechnologyAndOccupancy
us-gaap_IncreaseDecreaseInInventories
Inventory
Trading Symbol
Nature of Operation, Product Information, Concentration of Risk [Table]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Domain]
Nature of Operations [Text Block]
Conversion of pre-funded warrants into ordinary shares
Conversion of pre-funded warrants into ordinary shares (in shares)
Local Phone Number
Exercise of options into ordinary shares (in shares)
Exercised, number of options (in shares)
us-gaap_TableTextBlock
Notes Tables
Exercise of options into ordinary shares
Other expenses (1)
us-gaap_OtherSellingGeneralAndAdministrativeExpense
Selling, general and administrative expenses
Total selling, general and administrative expenses
urgn_InventoryCurrentAndNoncurrentNet
Total inventories
The amount of inventory, net of allowances, classified as both current and noncurrent.
Secured Overnight Financing Rate (SOFR) [Member]
Granted, number of options (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)
us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod
Forfeited, number of options (in shares)
Collaborative Arrangement and Arrangement Other than Collaborative [Domain]
Cash equivalents, unrealized gains
Cash equivalents, unrealized gains
Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on cash and cash equivalents.
Issuance of ordinary shares, net of issuance costs (in shares)
Stock Issued During Period, Shares, New Issues (in shares)
Raw materials
Inventory, Raw Materials, Net of Reserves
Line of Credit Facility [Table]
us-gaap_LiabilitiesAndStockholdersEquity
Total Liabilities and Shareholders' Deficit
Finished goods
Issuance of ordinary shares, net of issuance costs
Stock Issued During Period, Value, New Issues
urgn_CashCashEquivalentsAccumulatedGrossUnrealizedLossesBeforeTax
Cash equivalents, unrealized loss
Cash equivalents, unrealized loss
Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on cash and cash equivalents.
urgn_CashCashEquivalentsAndShortTermInvestmentsAccumulatedGrossUnrealizedLossesBeforeTax
Total assets at fair value, unrealized losses
Total assets at fair value, unrealized losses
Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on cash cash equivalents and shorterm investments.
Total assets at fair value, unrealized gains
Total assets at fair value, unrealized gains
Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on cash cash equivalents and short term investments.
Total assets at fair value, fair value
urgn_CashCashEquivalentsAndShortTermInvestmentsFairValueDisclosure
Total assets at fair value, fair value
Fair value portion of cash cash equivalents and short term investments.
Accumulated deficit
Retained Earnings (Accumulated Deficit)
Research and development expenses
Research and development expenses
Accumulated other comprehensive income
Money Market Funds [Member]
R&D project materials & services
us-gaap_ResearchAndDevelopmentExpenseExcludingAcquiredInProcessCost
Debt Disclosure [Text Block]
Cash and Cash Equivalents [Axis]
Cash and Cash Equivalents [Domain]
Changes in operating assets and liabilities:
Restricted deposit
us-gaap_DisclosureTextBlockAbstract
Notes to Financial Statements
Inventory Disclosure [Text Block]
Subsequent Event [Member]
Interest expense
Interest expense
Interest expense on long-term debt
Operating long-term lease liabilities
Schedule of Inventory, Current [Table Text Block]
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Inventory, Current [Table]
urgn_ConcentrationRiskNumberOfCustomers
Concentration Risk, Number of Customers
Represents the number of customers.
Present value of lease liabilities
Operating Lease, Liability
Subsequent Event [Table]
Subsequent Event Type [Axis]
Other current liabilities related to operating leases
Defined Benefit Plan [Table]
Subsequent Event Type [Domain]
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Other current liabilities related to finance leases
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Finance long-term lease liabilities
Subsequent Events [Text Block]
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Operating lease right-of-use assets
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue
Lessee, Operating Lease, Liability, to be Paid
Total future minimum lease payments
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Financing cash flows from finance leases
Principal payments on finance leases
Present value of lease liabilities
us-gaap_FinanceLeaseLiability
us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
Less: Interest
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree
2028
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour
2029
Finance lease right-of-use assets
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Largest Customer [Member]
Description of risks that arise due to the volume of business transacted with a particular customer.
Net Investment in Lease, before Allowance for Credit Loss
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
2026
us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
2027
urgn_DeferredTaxAssetInterestExpense
Interest expense
Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences from provisions, reserves, allowances, and accruals, classified as interest expense.
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]
Share-based compensation
us-gaap_ShareBasedCompensation
Other non-current assets
Lessee, Leases [Policy Text Block]
Earnings Per Share, Policy [Policy Text Block]
Prepaid forward obligation
Prepaid Forward Obligation
Carrying value of prepaid forward obligation
Carrying value of prepaid forward obligation
The amount of the prepaid forward obligation as of the balance sheet date.
Interest and other income, net
The amount of interest and other income, net of expenses.
Financing on prepaid forward obligation
Financing on prepaid forward obligation
The amount of financing on the preapid forward obligation during the period.
Operating expenses:
Amortization (accretion) of discount on long-term debt
Income Tax, Policy [Policy Text Block]
us-gaap_AssetsFairValueDisclosure
Total assets at fair value
us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments
Accretion on marketable securities
us-gaap_LesseeOperatingLeaseTermOfContract
Lessee, Operating Lease, Term of Contract (Month)
Research and Development Expense, Policy [Policy Text Block]
Marketable securities
us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent
us-gaap_ConversionOfStockSharesIssued1
Conversion of Stock, Shares Issued (in shares)
Depreciation and amortization
Depreciation, Depletion and Amortization
us-gaap_ConversionOfStockSharesConverted1
Conversion of Stock, Shares Converted (in shares)
us-gaap_SharesIssuedPricePerShare
Shares Issued, Price Per Share (in dollars per share)
Stock Conversion Description [Axis]
Conversion of Stock, Name [Domain]
us-gaap_AssetsCurrent
Total current assets
Non-current assets:
Cash equivalents, fair value
Cash equivalents, fair value
Cash equivalents, fair value
Share-Based Payment Arrangement [Policy Text Block]
Equity [Text Block]
Other expenses
us-gaap_OtherResearchAndDevelopmentExpense
urgn_OwnershipPercentageDebtInstrument
Ownership Percentage, Debt instrument
Pertains to ownership percentage.
One-time Payment for Net Sales Milestone [Member]
Pertains to the commitment.
Asset Purchase Agreement [Member]
Pertains to the type of arrangement.
Fair Value Measurement Inputs and Valuation Techniques [Table]
IconOVir Bio, Inc. [Member]
Information pertaining to the counterparty.
us-gaap_LesseeFinanceLeaseTermOfContract1
Lessee, Finance Lease, Term of Contract (Year)
Selling, General and Administrative Expenses, Policy [Policy Text Block]
Ordinary shares, NIS 0.01 par value; 100,000,000 shares authorized at December 31, 2025 and 2024; 48,350,272 and 42,231,746 shares issued and outstanding as of December 31, 2025 and 2024, respectively
Adjustment to reconcile net loss to net cash from operating activities:
Measurement Frequency [Axis]
Measurement Frequency [Domain]
Fair Value, Recurring [Member]
Ordinary shares, authorized (in shares)
Common Stock, Shares Authorized (in shares)
Right-of-Use Assets, Operating and Finance Leases
Amount of lessee's right to use underlying asset under operating and financing leases.
Commercial Paper [Member]
Ordinary shares, issued (in shares)
Common Stock, Shares, Issued (in shares)
Lease, Liabilities, Noncurrent
Present value of lessee's discounted obligation for lease payments from operating and finance leases, classified as noncurrent.
Certificates of Deposit [Member]
Ordinary shares, par value (in ILS per share)
Stockholders' Equity, Policy [Policy Text Block]
us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Changes during the year
us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Common Stock, Capital Shares Reserved for Future Issuance (in shares)
Balance
Balance
us-gaap_DeferredTaxAssetsValuationAllowance
Less—valuation allowance
urgn_ProceedsFromPrepaidForwardArrangementNet
Proceeds from Prepaid Forward Arrangement, Net
The amount of cash inflow from prepaid forward arrangement, net of transaction costs.
Lessee, Lease, Description [Table]
Statistical Measurement [Domain]
Operating cash flows from operating leases
Maximum [Member]
Summary of Valuation Allowance [Table Text Block]
Supplemental Disclosures of Non-Cash Activities
Minimum [Member]
Deferred Tax Asset, Valuation Allowance [Table]
Accrued financing on prepaid forward obligation
The amount of prepaid financing on prepaid forward obligation.
Product and Service [Axis]
Product and Service [Domain]
us-gaap_DeferredTaxAssetsNet
Deferred tax assets, net of valuation allowance
Statistical Measurement [Axis]
Debt, Policy [Policy Text Block]
us-gaap_DeferredTaxAssetsLiabilitiesNet
Net deferred tax assets
us-gaap_DeferredTaxAssetsOther
Other
Property, Plant and Equipment Disclosure [Text Block]
Property, Plant and Equipment [Table Text Block]
Total deferred tax assets
us-gaap_DeferredIncomeTaxLiabilities
Total deferred tax liabilities
Inventories
In-process research and development
Schedule of Sales Reserves [Table Text Block]
Tabular disclosure for the schedule of sales reserves.
Fair Value Hierarchy and NAV [Domain]
Customer [Axis]
Segment, Reconciliation of Other Items from Segments to Consolidated [Table]
Accruals
The amount of sales reserve accruals during the period.
Customer [Domain]
Utilizations
The amount of utilization of sales reserve during the period.
Fair Value, Inputs, Level 1 [Member]
Government Sponsored Programs Reserves [Member]
Related to government sponsored programs reserves.
Fair Value, Inputs, Level 2 [Member]
Fair Value Hierarchy and NAV [Axis]
Other Reserves [Member]
Related to other reserves.
Accrued sales reserves
The value of accrued sales reserve classified as current.
Accrued expenses
Prepaid Forward Obligation Policy [Policy Text Block]
Disclosure for accounting policy for prepaid forward obligation.
Property, Plant and Equipment, Useful Life [Table Text Block]
Tabular disclosure of the useful life of property, plant and equipment.
Useful life (Year)
Manufacturing Equipment [Member]
Represents manufacturing equipment.
Furniture [Member[
Represents furniture.
urgn_ClassOfWarrantsOrRightsIssuancePricePerShare
Class of Warrants or Rights, Issuance Price Per Share (in dollars per share)
Issuance price per share for class of warrants or rights.
urgn_PlacementAgentsAndFinancialAdvisorsFees
Placement Agents and Financial Advisors Fees
Amount of fees of placement agents and financial advisors.
Cash Flows From Operating Activities
Cash, Cash Equivalents and Marketable Securities Policy [Policy Text Block]
Disclosure of accounting policy for cash, cash equivalents and marketable securities.
Pre-funded Warrant [Member]
Represents pre-funded warrant.
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Revenue [Policy Text Block]
Statement [Line Items]
Laboratory Equipment [Member]
Represents laboratory equipment.
Computers and Software [Member]
Represents computers and software.
Other Financial Information [Text Block]
The entire disclosure for other financial information.
us-gaap_NumberOfOperatingSegments
Number of Operating Segments
Accounts receivable, net
us-gaap_NumberOfReportableSegments
Number of Reportable Segments
us-gaap_CashCashEquivalentsAndShortTermInvestments
Cash, Cash Equivalents, and Short-Term Investments
us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
Stock-based compensation
AOCI Attributable to Parent [Member]
Additional paid-in capital
Total assets at fair value
Shareholders' Deficit:
Leasehold Improvements [Member]
us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent
Marketable securities
Property, Plant and Equipment, Policy [Policy Text Block]
Property, Plant and Equipment [Table]
Long-Lived Tangible Asset [Axis]
Other loss, net
Segment Reporting Disclosure [Text Block]
Interest Income and Interest Expense Disclosure [Table Text Block]
Long-Lived Tangible Asset [Domain]
Restricted cash
Net operating loss carryforward
Chief Financial Officer [Member]
us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch
Research and development expenses
Current assets:
Fair Value Disclosures [Text Block]
us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations
Cash, Cash Equivalents and Restricted Cash at Beginning of Year
Cash, Cash Equivalents and Restricted Cash at End of Year
Inventory, Policy [Policy Text Block]
Assets [Abstract]
Private Placement [Member]
Interest income
us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
Increase (Decrease) in Cash and Cash Equivalents
Over-Allotment Option [Member]
us-gaap_NetCashProvidedByUsedInFinancingActivities
Net cash provided by financing activities
us-gaap_Liabilities
Total Liabilities
Commitments and Contingencies (Note 20)
Sale of Stock [Axis]
Sale of Stock [Domain]
us-gaap_OperatingIncomeLoss
Operating loss
us-gaap_NetCashProvidedByUsedInOperatingActivities
Net cash used in operating activities
us-gaap_NetCashProvidedByUsedInInvestingActivities
Net cash provided by (used in) investing activities
Prepaid expenses and other current assets
urgn_AccruedSalesReserve
Balance
Balance
Carrying value as of the balance sheet date of accrued sales reserve.
Accrued research and development expenses
Carrying value as of the balance sheet date of accrued research and development expense
Cost of revenue
Accrued clinical expenses
Carrying value as of the balance date of accrued clinical expense.
us-gaap_GrossProfit
Gross profit
Counterparty Name [Axis]
Counterparty Name [Domain]
Consolidation Items [Domain]
Accrued selling, general and administrative expenses
Carrying value as of the balance sheet date of accrued selling, general and administrative expense.
us-gaap_DeferredTaxLiabilitiesLeasingArrangements
Right-of-use asset
Consolidation Items [Axis]
us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued
Maturities after one year through three years
Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
us-gaap_PaymentsOfStockIssuanceCosts
Payments of Stock Issuance Costs
Concentration Risk, Credit Risk, Policy [Policy Text Block]
us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Depreciation of fixed assets
us-gaap_InterestAndOtherIncome
Total interest and other income, net
RTW Investments [Member]
Represents RTW Investments (“RTW”).
urgn_SaleOfStockRemainingAmountAuthorized
Sale of Stock, Remaining Amount Authorized
Represents the remaining monetary amount of equity authorized for issuance under a sale of stock.
Conversion of Prefunded Warrants Into Ordinary Shares [Member]
Relating to the conversion of prefunded warrants into ordinary shares.
Prepaid Forward Obligation Disclosure [Text Block]
The entire disclosure for the prepaid forward obligation.
Sales of Up to $200 Million [Member]
Represents sales of up to $200 million.
Sales Between $200 Million and $300 Million [Member]
Represents sales between $200 million and $300 million.
Additional Adjustment on SOFR Rate [Member]
Relating to additional adjustment on SOFR rate.
us-gaap_ProceedsFromIssuanceOrSaleOfEquity
Proceeds from Issuance or Sale of Equity
Sales Over $300 Million [Member]
Represents sales over $300 million.
urgn_PrepaidForwardAgreementFutureCashFlowsIncreaseInPercentageOfNetSales
Prepaid Forward Agreement, Future Cash Flows, Increase in Percentage of Net Sales
The increase in percentage of net sales for future cash flows under the prepaid forward agreement.
urgn_ProceedsFromPrepaidForwardObligation
Proceeds from Prepaid Forward Obligation
The amount of cash inflow for prepaid forward obligation.
Scenario [Domain]
Proceeds from pre-funded warrant issuance, net of issuance costs
urgn_PrepaidForwardAgreementFutureCashPaymentsPercentageOfNetSales
Prepaid Forward Agreement, Future Cash Payments, Percentage of Net Sales
The percentage of net sales for future cash payments under the prepaid forward agreement.
UGN-102 [Member]
Represents UGN-102.
urgn_PrepaidForwardAgreementMinimumFutureCashFlows
Prepaid Forward Agreement, Minimum Future Cash Flows
The minimum amount of future cash flows under the prepaid forward agreement.
us-gaap_ProceedsFromIssuanceOfPrivatePlacement
Proceeds from Issuance of Private Placement
Retained Earnings, Appropriated [Member]
Schedule of Activity in the Carrying Value of the Prepaid Forward Liability [Table Text Block]
The tabular disclosure of activity in the carrying value of the prepaid forward liability.
Revenue
Proceeds from exercise of options into ordinary shares
Sales Up to $200 Million with FDA Approval [Member]
Represents sales up to $200 million with FDA approval.
Sales Between $200 Million and $300 Million with FDA Approval [Member]
Represents sales between $200 million and $300 million with FDA approval.
Title and Position [Domain]
Proceeds from ordinary shares issuances, net of issuance costs
U.S. State
us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Sales Over $300 Million with FDA Approval [Member]
Represents sales over $300 million with FDA approval.
Title and Position [Axis]
Scenario [Axis]
Jelmyto [Member]
Represents Jelmyto.
Lease Agreement for Office in Los Angeles, California [Member]
Represents the lase agreement for office in Los Angeles, California.
Lease Agreement for Office in Princeton, New Jersey [Member]
Represents lease agreement for office in Princeton, New Jersey.
Assets and Liabilities, Lessee [Table Text Block]
Tabular disclosure of lessee's assets and liabilities.
Additional Paid-in Capital [Member]
Common Stock [Member]
U.S. Federal
us-gaap_CurrentFederalTaxExpenseBenefit
UroGen Pharma Inc. [Member]
Represents UroGen Pharma Inc.
Equity Components [Axis]
Equity Component [Domain]
Schedule of Supplemental Information Related to Leases [Table Text Block]
Tabular disclosure of supplemental information related to leases.
us-gaap_LongTermDebt
Total
Stock, Class of Stock [Table]
us-gaap_CurrentIncomeTaxExpenseBenefit
Total current taxes
Other Noncurrent Assets [Member]
urgn_SecuredLongTermDebtFourthTranche
Secured Long Term Debt, Fourth Tranche
Represents the amount of long term debt on the fourth tranche of senior secured long term debt.
us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)
Other Current Liabilities [Member]
Class of Warrant or Right [Axis]
Class of Warrant or Right [Domain]
us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Third tranche of Pharmakon loan
Secured Long Term Debt, Third Tranche
Represents the amount of long term debt for the third tranche of secured long term debt.
us-gaap_ClassOfWarrantOrRightOutstanding
Class of Warrant or Right, Outstanding (in shares)
Loss before income taxes, amount
us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Loss before income taxes
Monograph Capital Partners [Member]
Represents Monograph Capital Partners.
Share Option Plan [Member]
Represents information regarding a share option plan.
urgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardIndividualVotingPowersPercentage
Share-based Compensation Arrangement By Share-based Payment Award, Individual Voting Powers, Percentage
Represents the individual voting powers percentage that serves as the threshold beyond which certain pricing criteria will apply.
urgn_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfPurchasePriceForIndividualsHavingMoreThanTenPercentOfCombinedVotingPower
Share-based Compensation Arrangement By Share-based Payment Award, Percentage of Purchase Price for Individuals Having More than Ten Percent of Combined Voting Power
Stock options exercise price percentage for individuals possesses more than 10% of the combined voter power.
ICFR Auditor Attestation Flag
Two Thousand Seventeen Equity Incentive Plan [Member]
Represents information regarding the 2017 Equity Incentive Plan.
Income Tax Authority, Name [Axis]
Income Tax Authority, Name [Domain]
Income Tax Jurisdiction [Axis]
Disaggregation of Revenue [Table Text Block]
Income Tax Jurisdiction [Domain]
Disaggregation of Revenue [Table]
Foreign Tax Jurisdiction [Member]
Revenue from Contract with Customer [Text Block]
Document Annual Report
urgn_NonCashNewLeaseLiabilities
Right-of-use assets obtained in exchange for new operating and finance lease liabilities
Represents the amount include in supplemental disclosures of non-cash activities for new lease liabilities.
Statement of Financial Position Location, Balance [Axis]
Change in Unrecognized Tax Benefit, Reasonably Possible [Table]
Statement of Financial Position Location, Balance [Domain]
Entity Incorporation, State or Country Code
us-gaap_DebtInstrumentCarryingAmount
Long-Term Debt, Gross
Carrying value of Pharmakon loan
Carrying value of Pharmakon loan
us-gaap_UnrecognizedTaxBenefits
Unrecognized tax benefits at the beginning of the year
Unrecognized tax benefits at the end of the year
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]
Document Transition Report
Document Financial Statement Error Correction [Flag]
urgn_DebtInstrumentPaidAndPayableAmount
Amounts paid
Represents the amount of paid and payable related to debt instrument.
Selling, General and Administrative Expenses [Member]
Entity Interactive Data Current
urgn_SecuredLongTermDebtAdditionalDraw
Secured Long Term Debt, Additional Draw
Represents additional draw under the secured long term debt.
urgn_PrepaidForwardAgreementMinimumFutureCashFlowsRate
Prepaid Forward Agreement, Minimum Future Cash Flows, Rate (Rate)
Represents the rate related to minimum future cash flow.
Gross increases — tax positions in prior period
Security Exchange Name
us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
Gross decreases— tax positions in prior period
Title of 12(b) Security
urgn_SecuredLongTermDebtFirstTranche
Secured Long Term Debt, First Tranche
Represents the first tranche related to secured long term debt.
Company Offices in Israel [Member]
Represents company offices in Israel
urgn_SecuredLongTermDebtSecondTranche
Secured Long Term Debt, Second Tranche
Represents the second tranche related to secured long term debt.
Proceeds from issuance of long-term debt, net of issuance costs
Receivable Type [Axis]
Receivable [Domain]
Uncertain tax positions
Amount of increase (decrease) in Uncertain Tax Positions.
Research and Development Expense [Member]
urgn_SaleOfStockMaximumAuthorizeAmount
Sale of Stock, Maximum Authorize Amount
Maximum authorized amount for sale of stock.
Statement of Income Location, Balance [Axis]
Statement of Income Location, Balance [Domain]
Collaborative Arrangement and Arrangement Other than Collaborative [Table]
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
Collaborative Arrangement Disclosure [Text Block]
Auditor Name
Auditor Firm ID
Auditor Location
Changes to prior period estimates
The amount of changes to prior period estimates of sales reserve during the period.
The 2019 Inducement Plan [Member]
Related to the 2019 Inducement Plan.
Value of ordinary shares (in dollars per share)
urgn_DecreaseInPrepaidForwardObligationAmountsPaidAndPayable
Amounts paid and payable
The amount of decrease in prepaid forward obligation from amounts paid and payable.
urgn_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour
2030 and there after
Amount of lessee's undiscounted obligation for lease payment for operating lease due after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).
us-gaap_OperatingLossCarryforwards
Operating Loss Carryforwards
Underwritten Public Offering [Member]
Represents underwritten public offering.
Statement [Table]
Employee Rights Upon Retirement [Text Block]
The entire disclosure for employee rights upon retirement.
Statement of Financial Position [Abstract]
urgn_NetProceedsFromIssuanceOfCommonStockAfterDeductingSalesCommissions
Net Proceeds From Issuance of Common Stock, After Deducting Sales Commissions
The cash inflow from the additional capital contribution to the entity, net of sales commissions.
Weighted-average number of ordinary shares (in shares)
Weighted average number of shares outstanding used in computation of basic and diluted loss per ordinary share (in shares)
us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments
Other, percent
Income tax expense, percent
us-gaap_EffectiveIncomeTaxRateContinuingOperations
ATM Sales Agreement [Member]
Represents ATM Sales Agreement.
Net loss per ordinary share - basic and diluted (in dollars per share)
Loss per ordinary share (in dollars per share)
us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance
Changes in valuation allowances in foreign jurisdictions, percent
Statement of Cash Flows [Abstract]
Lease Contractual Term [Domain]
Statement of Stockholders' Equity [Abstract]
Lease Contractual Term [Axis]
Income Statement [Abstract]
Other comprehensive income
Other comprehensive loss
us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
2028
us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
2029
us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
2030
us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
Thereafter
us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
2026
us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
2027
Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]
Interest on lease liabilities
us-gaap_FinanceLeaseLiabilityPaymentsDue
Finance Lease, Liability, to be Paid
Total future minimum finance lease payments
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
Amortization of right-of-use assets
us-gaap_FinanceLeaseRightOfUseAssetAmortization
Investments Classified by Contractual Maturity Date [Table Text Block]
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount
Less: Interest
Employees and Non-employees [Member]
Represents employee and non-employees
us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths
2026
us-gaap_OtherCommitment
Other Commitment
us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo
2027
us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree
2028
us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour
2029
Accounting Standards Update and Change in Accounting Principle [Table]
urgn_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedFairValue
Share-based Compensation Arrangement by Share-based Payment Award, Options, Granted, Fair Value
Fair value of options granted under share-based compensation arrangement.
urgn_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedFairValue
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Granted, Fair Value
Fair value of equity instruments other than options granted under share-based compensation arrangement.
Lease Liabilities
Amount before allocation of valuation allowances of deferred tax asset attributable to lease liability.
us-gaap_AssetAcquisitionConsiderationTransferred
Asset Acquisition, Consideration Transferred
us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsForeign
Tax credits in foreign jurisdictions, percent
Weighted-average discount rate of finance leases
Finance Lease, Liability, to be Paid, Maturity [Table Text Block]
Issuance costs
Amount before allocation of valuation allowances of deferred tax asset attributable to issuance costs.
us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes
Current and deferred US state taxes, percent
us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential
Differing tax rate of foreign subsidiaries, percent
Other Commitments [Axis]
Liabilities, Noncurrent
Other Commitments [Domain]
Asset Acquisition, Contingent Consideration, Liability, Current
Weighted-average remaining lease term of finance leases (in years) (Year)
us-gaap_IncomeTaxReconciliationOtherAdjustments
Other, amount
Cash Flows From Financing Activities
Statutory rate, rate
us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Changes in valuation allowances, amount
Uncertain tax positions liability
Liability for Uncertainty in Income Taxes, Noncurrent
Disaggregation of Income Statement Expense, Caption [Table]
Asset Acquisition [Table]
Amortization of right-of-use assets
us-gaap_StockholdersEquity
Total Shareholders' Deficit
Balance
Balance
Class of Stock [Axis]
Long-term debt
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Unrealized losses
Unrealized losses
Unrealized gains
Unrealized gains
Operating Segments [Member]
us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit
Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit (in dollars per share)
us-gaap_IncomeTaxReconciliationTaxCreditsForeign
Tax credits in foreign jurisdictions, amount
Amortized cost basis
Amortized cost basis
us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Current and deferred US state taxes, amount
Differing tax rate of foreign subsidiaries, amount
us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential
us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit
Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit (in dollars per share)