Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Related Party Transactions - Asia Pacific Financial Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Related Party Transactions
Revenues	$ 26,997	$ 24,687	$ 26,411	$ 28,429	$ 26,814	$ 26,823	$ 29,798	$ 30,828	$ 106,524	$ 114,263	$ 123,961
Operating Loss	1,079	18	1,386	2,062	2,028	1,875	3,437	2,846	4,545	10,186	3,820
Net Loss	$ 675	$ (576)	$ 687	$ 2,744	$ 943	$ 1,619	$ 2,020	$ 2,049	3,530	6,631	10,864
Other Comprehensive income									$ 3,720	$ 6,752	9,558
Affiliated Entity \| Travelzoo Asia Pacific Adjustments
Related Party Transactions
Revenues											10,774
Operating Loss											(2,436)
Net Loss											(3,096)
Other Comprehensive income											$ 305
Basic and diluted earnings per share (in dollars per share)											$ (0.21)