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Commitments and Contingencies (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2004 | Dec. 31, 2002
Loss Contingencies |  |  |  |
Operating leases, rent expense | $ 2,600 | $ 3,500 |  |
Sublease income | 353 | $ 359 |  |
Purchase obligation | $ 1,900 |  |  |
Minimum |  |  |  |
Loss Contingencies |  |  |  |
Remaining lease term (in years) | 1 year |  |  |
Term of lease | 1 year |  |  |
Maximum |  |  |  |
Loss Contingencies |  |  |  |
Term of lease | 8 years |  |  |
Travel Zoo Com Corporation |  |  |  |
Loss Contingencies |  |  |  |
Period for receiving shares under merger (in years) |  |  | 2 years | 2 years
Number of shares exchanged under merger(in shares) |  |  |  | 1

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