Summary of Significant Accounting Policies (Policies)	6 Months Ended
Summary of Significant Accounting Policies (Policies)	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements In June 2016, the FASB issued ASU No. 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments,” which provides new guidance on the measurement of credit losses for financial assets measured at amortized cost, which includes accounts receivable. The new guidance replaces the existing incurred loss impairment model with an expected loss methodology, which will result in more timely recognition of credit losses. This update is effective for public business entities for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. For Smaller Reporting Companies (as such term is defined by the SEC), such as Travelzoo, the standard will be effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Early adoption is permitted for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Entities are required to apply this update on a modified retrospective basis with a cumulative-effect adjustment to retained earnings as of the beginning of the period of adoption. The Company is currently evaluating the impact on its financial position and results of operations.
Revenue Recognition	Revenue Recognition The Company follows Accounting Standards Update No. 2014-09, "Revenue from Contracts with Customers" (Topic 606). Under Topic 606, revenue is recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. The Company's revenues are primarily advertising fees generated from the publishing of travel and entertainment deals on the Travelzoo website, in the Top 20 email newsletter, in Newsflash and through the Travelzoo Network. The Company also generates transaction-based revenues from the sale of vouchers through our Local Deals and Getaways products and operation of a hotel booking platform and limited offerings of vacation packages and subscription revenues from Jack's Flight Club. The Company's disaggregated revenues are included in “Note 9: Segment Reporting and Significant Customer Information”. For fixed-fee website advertising, the Company recognizes revenues ratably over the contracted placement period. For the Top 20 email newsletter and other email products, the Company recognizes revenues when the emails are delivered to its members. The Company offers advertising on a cost-per-click basis, which means that an advertiser pays the Company only when a user clicks on an advertisement on Travelzoo properties or Travelzoo Network members’ properties. For these customers, the Company recognizes revenues each time a user clicks on the ad. The Company also offers advertising on other bases, such as cost-per-impression, which means that an advertiser pays the Company based on the number of times their advertisement is displayed on Travelzoo properties, email advertisements, Travelzoo Network properties, or social media properties. For these customers, the Company recognizes revenues each time an advertisement is shown or email delivered. For transaction based revenues, including products such as Local Deals, Getaways, hotel platform and vacation packages, the Company evaluates whether it is the principal (i.e., report revenue on a gross basis) versus an agent (i.e., report revenue on a net basis). The Company reports transaction revenue on a net basis because the supplier is primarily responsible for providing the underlying service, and we do not control the service provided by the supplier prior to its transfer to the customer. For Local Deals and Getaways products, the Company earns a fee for acting as an agent for the sale of vouchers that can be redeemed for services with third-party merchants. Revenues are presented net of the amounts due to the third-party merchants for fulfilling the underlying services and an estimated amount for future refunds. Since the second quarter of 2020, the Company expanded its vouchers refund policy in order to entice customers given the current economic climate to fully refundable until the voucher expires or is redeemed by the customer. Certain merchant contracts allow the Company to retain the proceeds from unredeemed vouchers. With these contracts, the Company estimates the value of vouchers that will ultimately not be redeemed and records the estimate as revenues in the same period Jack’s Flight Club revenue is generated from paid subscriptions by members. Subscription options are quarterly, semi-annually, and annually. We recognize the revenue on a pro-rated basis based upon the subscription option. Commission revenue related to hotel platform is recognized ratably over the period of guest stay, net of an allowance for cancellations based upon historical patterns. For arrangements for booking non-cancelable reservations where the Company’s performance obligation is deemed to be the successful booking of a hotel reservation, we record revenue for the commissions upon completion of the hotel booking. The Company’s contracts with customers may include multiple performance obligations in which the Company allocates revenues to each performance obligation based upon its standalone selling price. The Company determines standalone selling price based on its overall pricing objectives, taking into consideration the type of services, geographical region of the customers, normal rate card pricing and customary discounts. Standalone selling price is generally determined based on the prices charged to customers when the product is sold separately. The Company relies upon the following practical expedients and exemptions allowed for in the ASC 606. The Company expenses sales commissions when incurred because the amortization period would be one year or less. These costs are recorded in sales and marketing expenses. In addition, the Company does not disclose the value of unsatisfied performance obligations for (a) contracts with an original expected length of one year or less and (b) contracts for which it recognizes revenues at the amount to which it has the right to invoice for services performed. Deferred revenue primarily consists of customer prepayments and undelivered performance obligations related to the Company’s contracts with multiple performance obligations.
Reserve for Refunds to Members	Reserve for Refunds to Members The Company records an estimated reserve for refunds to members based on our historical experience at the time revenue is recorded for Local Deals and Getaways voucher sales. We consider many key factors such as the historical refunds based upon the time lag since the sale, historical reasons for refunds, time period that remains until the deal expiration date, any changes in refund procedures and estimates of redemptions and breakage. For publishing revenue, we recognize revenue upon delivery of the emails and delivery of the clicks, over the period of the placement of the advertising. Insertion orders for publishing revenue are typically for periods between one month and twelve months and are not automatically renewed. For Getaways vouchers, we recognize a percentage of the face value of the vouchers upon the sale of the vouchers. Merchant agreements for Getaways advertisers are typically for periods between twelve months and twenty-four months and are not automatically renewed. Since the second quarter of 2020, the Company expanded its voucher refund policy to fully refundable until the voucher expires or is redeemed by the customer. The expiration dates of vouchers range between July 2022 through December 2025 with the majority of vouchers expiring at the end of 2022 and the remaining primarily expiring in 2023; provided, that these expiration dates may sometimes be extended on a case-by-case basis. The revenues generated from Local Deals vouchers and entertainment offers are based upon a percentage of the face value of the vouchers, commission on actual sales or a listing fee based on audience reach. For Local Deals vouchers, we recognize a percentage of the face value of vouchers upon the sale of the vouchers. The Company estimated the refund reserve by using historical and current refund rates by product and by merchant location to calculate the estimated future refunds. As of June 30, 2022, the Company had approximately $12.0 million of unredeemed vouchers that had been sold through June 30, 2022, representing the Company’s commission earned from the sale. The Company had estimated a refund liability of $2.9 million for these unredeemed vouchers as of June 30, 2022, which is recorded as a reduction of revenues and is reflected as a current liability in Accrued expenses and other on the condensed consolidated balance sheet. As of December 31, 2021, the Company had approximately $17.2 million of unredeemed vouchers that had been sold through 2021 representing the Company’s commission earned from the sale and estimated a refund liability of $5.2 million for these unredeemed vouchers as of December 31, 2021, which was recorded as a reduction of revenues and was reflected as a current liability in Accrued expenses and other on the condensed consolidated balance sheet. The Company has recorded Merchant Payables of $47.9 million as of June 30, 2022 related to unredeemed vouchers. Insertion orders and merchant agreements for Local Deals are typically for periods between one month and twelve months and are not automatically renewed except for merchant contracts in foreign locations. Should any of these factors change, the estimates made by management will also change, which could impact the level of our future reserve for refunds to member. Specifically, if the financial condition of our advertisers, the business that is providing the vouchered service, were to deteriorate, affecting their ability to provide the services to our members, additional reserves for refunds to members may be required and may adversely affect future revenue as the liability is recorded against revenue. We record a liability associated with estimated future refunds in accrued expenses on the condensed consolidated balance sheets. Estimated member refunds that are determined to be recoverable from the merchant are recorded in the condensed consolidated statements of operations as a reduction to revenue. Estimated member refunds that are determined not to be recoverable from the merchant are presented as a cost of revenue. If our judgments regarding estimated member refunds are inaccurate, reported results of operations could differ from the amount we previously accrued.
Business Combinations	Business Combinations The purchase price of an acquisition is allocated to the tangible and intangible assets acquired and liabilities assumed based on their estimated fair values at the acquisition date. To the extent the purchase price exceeds the fair value of the net identifiable tangible and intangible assets acquired and liabilities assumed, such excess is allocated to goodwill. The Company determines the estimated fair values after review and consideration of relevant information, including discounted cash flows, quoted market prices and estimates made by management. The Company records the net assets and results of operations of an acquired entity from the acquisition date and adjusts the preliminary purchase price allocation, as necessary, during the measurement period of up to one year after the acquisition closing date as it obtains more information as to facts and circumstances existing at the acquisition date impacting asset valuations and liabilities assumed. Acquisition-related costs are recognized separately from the acquisition and are expensed as incurred.
Identifiable intangible assets	Identifiable intangible assets Upon acquisition, identifiable intangible assets are recorded at fair value and are carried at cost less accumulated amortization. Identifiable intangible assets with finite lives are amortized on a straight-line basis over their estimated useful lives. The carrying values of all intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that their carrying amounts may not be recoverable.
Goodwill	Goodwill Goodwill represents the excess of the purchase price of an acquired business over the fair value of the underlying net tangible and intangible assets. Goodwill is evaluated for impairment annually, and whenever events or changes in circumstances indicate the carrying value of goodwill may not be recoverable. In testing goodwill for impairment, the Company first uses a qualitative assessment to evaluate whether it is more likely than not that the fair value of a reporting unit is less than the carrying amount. If the qualitative assessment indicates that goodwill impairment is more likely than not, the Company performs an impairment test by comparing the book value of net assets to the fair value of the reporting units.
Operating Leases	Operating Leases The Company determines if an arrangement contains a lease at inception. Operating lease right-of-use (“ROU”) assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. The lease payments used to determine the operating lease assets may include lease incentives and stated rent increases. The Company does not include options to extend or terminate until it is reasonably certain that the option will be exercised. Lease expense is recognized on a straight-line basis over the lease term. The Company uses its incremental borrowing rate based on the information available at the commencement date in determining the lease liabilities as the Company’s leases generally do not provide an implicit rate. The Company elected not to recognize leases with an initial term of 12 months or less on its unaudited condensed consolidated balance sheets. The Company’s leases are reflected in operating lease ROU assets, operating lease liabilities and long-term operating lease liabilities in our unaudited condensed consolidated balance sheets. The lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. The Company also has a real estate lease agreement which is subleased to a third party. The Company recognizes sublease income in “Other income (loss), net”, on a straight-line basis over the lease term in its condensed consolidated statements of income.
Certain Risks and Uncertainties	Certain Risks and Uncertainties The Company’s business is subject to risks associated with its ability to attract and retain advertisers and offer products or services on compelling terms to our members. The global pandemic is having an unprecedented impact on the global travel and hospitality industries. Governmental authorities have implemented numerous measures to try to contain the virus, including restrictions on travel, quarantines, shelter-in-place orders, business restrictions and complete shut-downs. The measures implemented to contain the global pandemic have had, and are expected to continue to have, a significant negative effect on our business, financial condition, results of operations and cash flows. The Company’s cash, cash equivalents and accounts receivable are potentially subject to concentration of credit risk. Cash and cash equivalents are placed with financial institutions that the management believes are of high credit quality. The accounts receivables are derived from revenue earned from customers located in the U.S. and internationally. As of June 30, 2022 and December 31, 2021, the Company did not have any customers that accounted for 10% or more of accounts receivable. Many of the Company’s advertisers and partners are part of the global travel and hospitality industry. The measures implemented to contain COVID have had, and are expected to continue to have, a significant negative effect on the Company’s business, financial condition, results of operations, and cash flows. The measures implemented led to many of the Company’s advertisers pausing, canceling, or stopping advertising with us, as well as a high level of cancellations for our hotel partners and travel package partners, and refund requests for vouchers sold by Travelzoo for restaurant and spa partners. It is difficult to estimate the impact of the COVID pandemic on the Company’s future revenues, results of operations, cash flows, liquidity, or financial condition.
Cash, Cash Equivalents and Restricted Cash	Cash, Cash Equivalents and Restricted Cash Cash equivalents consist of highly liquid investments with maturities of three months or less on the date of purchase. Restricted cash includes cash and cash equivalents that is restricted through legal contracts, regulations or our intention to use the cash for a specific purpose. Our restricted cash primarily relates to refundable for leases.