Note 19 - Loss Per Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Net loss	$ (637)	$ (530)	$ (232)	$ (850)	$ (1,167)	$ (1,082)
Net (income)/loss attributable to noncontrolling interests from continued operations	0		16		(1)	16
Net loss attributable to ZW Data Action Technologies Inc. (numerator for basic and diluted loss per share)	$ (637)		$ (216)		$ (1,168)	$ (1,066)
Basic and diluted (in shares)	2,383,918		1,926,205		2,342,790	1,926,205
Basic and diluted (in dollars per share)	$ (0.27)		$ (0.11)		$ (0.5)	$ (0.55)