Condensed Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues	$ 14,551	$ 10,416	$ 22,947	$ 14,800
Cost of revenues	14,769	10,118	23,882	13,603
Gross (loss)/profit	(218)	298	(935)	1,197
Operating expenses
Sales and marketing expenses	73	70	101	235
General and administrative expenses	7,899	1,132	8,895	3,928
Research and development expenses	89	116	163	330
Total operating expenses	8,061	1,318	9,159	4,493
Loss from operations	(8,279)	(1,020)	(10,094)	(3,296)
Other income/(expenses)
Interest income/(expense), net	1	0	2	(1)
Other income/(expenses), net	326	18	302	17
Loss on disposal of long-term investments	(38)	0	(38)	0
Change in fair value of warrant liabilities	4,322	22	6,829	68
Total other income	4,611	40	7,095	84
Loss before income tax benefit/(expense) and noncontrolling interests	(3,668)	(980)	(2,999)	(3,212)
Income tax benefit/(expense)	22	10	40	(68)
Net loss	(3,646)	(970)	(2,959)	(3,280)
Net (income)/loss attributable to noncontrolling interests	0	2	(2)	2
Net loss attributable to ZW Data Action Technologies Inc.	(3,646)	(968)	(2,961)	(3,278)
Net loss	(3,646)	(970)	(2,959)	(3,280)
Foreign currency translation (loss)/gain	(4)	(4)	(23)	68
Comprehensive loss	(3,650)	(974)	(2,982)	(3,212)
Comprehensive (income)/loss attributable to noncontrolling interests	1	2	(1)	1
Comprehensive loss attributable to ZW Data Action Technologies Inc.	$ (3,649)	$ (972)	$ (2,983)	$ (3,211)
Loss per common share
Basic and diluted (in dollars per share)	$ (0.11)	$ (0.04)	$ (0.10)	$ (0.16)
Weighted average number of common shares outstanding:
Basic and diluted (in shares)	32,925,488	21,691,926	30,727,546	21,044,666
Unrelated Parties [Member]
Revenues	$ 14,551	$ 10,415	$ 22,947	$ 14,786
Related Parties [Member]
Revenues	$ 0	$ 1	$ 0	$ 14