Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator:
Net income attributable to Travelzoo—continuing operations	$ 4,236	$ 3,675
Net loss attributable to Travelzoo—discontinued operations	$ 0	$ (2)
Denominator:
Weighted average common shares - basic (in shares)	13,489	15,697
Effect of dilutive securities: stock options (in shares)	136	82
Weighted average common shares - diluted (in shares)	13,625	15,779
Income per share—basic
Continuing operations (in dollars per share)	$ 0.31	$ 0.23
Discontinued operations (in dollars per share)	0	0
Net income per share - basic (in dollars per share)	0.31	0.23
Income per share—diluted
Continuing operations (in dollars per share)	0.31	0.23
Discontinuing operations (in dollars per share)	0	0
Income per share - diluted (in dollars per share)	$ 0.31	$ 0.23
Anti-dilutive shares not included in computation of net income (loss) per common share (in shares)	925	950