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Granted in Covered Year that are Outstanding and Unvested [Member] Working capital Working Capital Working Capital General and administrative General and Administrative Expense Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Adjustment to Compensation: Adjustment to Compensation [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Prepaid income taxes Prepaid Taxes Merchant payables Merchant Payable, Current Merchant Payable, Current Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] 2030 Lessee, Operating Lease, Liability, to be Paid, Year Five Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Vesting period Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Right, Vesting Period Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Right, Vesting Period Additional Paid-In Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalent Operating leases, rent expense Operating Lease, Expense Retirement of treasury stock Treasury Stock, Retired, Cost Method, Amount Company Selected Measure Amount Company Selected Measure Amount Entity Address, Address Line Two Entity Address, Address Line Two Schedule of Stock by Class [Table] Stock, Class of Stock [Table] Net income (loss) Net income (loss) Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Unrecognized tax benefits affecting the company's effective income tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Current assets: Assets, Current [Abstract] Weighted average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Right-of-use assets obtained in exchange for lease obligations—operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Income tax expense (benefit) Income Tax Expense (Benefit) Net foreign currency effect Gain (Loss), Foreign Currency Transaction, before Tax Schedule of Breakdown of Revenues by Type and Segment Breakdown Of Revenues By Type And Segment [Table Text Block] Breakdown Of Revenues By Type And Segment Cost of revenues Cost of Product and Service Sold Purchase obligation Purchase Obligation Award Timing Method Award Timing Method [Text Block] Other Product and Service, Other [Member] Consolidation Consolidation, Policy [Policy Text Block] Net increase (decrease) in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Customer voucher refund liability Customer Voucher Refund Liability Customer Voucher Refund Liability Accumulated Other Comprehensive Income [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Net income (loss) attributable to Travelzoo Net income (loss) attributable to Travelzoo Net Income (Loss) Attributable to Parent Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Schedule of Changes in Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Operating Leases Lessee, Leases [Policy Text Block] Jack's Flight Club Jack's Flight Club [Member] Jack's Flight Club Retirement of treasury stock (in shares) Treasury Stock, Shares, Retired Non-cash investing and financing activities: Other Noncash Investing and Financing Items [Abstract] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Numerator: Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]