Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Third parties	$ 71,292	$ 70,227	$ 227,407	$ 203,317
Related parties	232	1,687	1,870	4,358
Total net revenue	71,524	71,914	229,277	207,675
Products and services - third parties	48,755	46,852	151,805	135,208
Products and services - related parties	190	1,478	1,427	3,677
Amortization of intangible assets	402	153	1,216	459
Total cost of revenue	49,347	48,483	154,448	139,344
Gross profit	22,177	23,431	74,829	68,331
Operating expenses:
Research and product development	9,898	8,655	29,512	26,346
Selling, marketing, general and administrative	15,716	11,106	45,684	35,212
Amortization of intangible assets	464	131	1,406	393
Total operating expenses	26,078	19,892	76,602	61,951
Operating income (loss)	(3,901)	3,539	(1,773)	6,380
Interest income	374	42	524	203
Interest expense	(1,124)	(447)	(3,239)	(1,330)
Other income (loss), net	944	(572)	2,517	(859)
Income (loss) before income taxes	(3,707)	2,562	(1,971)	4,394
Income tax provision	289	735	1,098	1,071
Net income (loss)	(3,996)	1,827	(3,069)	3,323
Net income attributable to non-controlling interest	37	29	194	2
Net income (loss) attributable to DASAN Zhone Solutions, Inc.	(4,033)	1,798	(3,263)	3,321
Foreign currency translation adjustments	(2,426)	391	(4,123)	(1,839)
Actuarial gain (loss)	38		(1,115)
Comprehensive income (loss)	(6,384)	2,218	(8,307)	1,484
Comprehensive income (loss) attributable to non- controlling interest	31	16	209	(3)
Comprehensive income (loss) attributable to DASAN Zhone Solutions, Inc.	$ (6,415)	$ 2,202	$ (8,516)	$ 1,487
Net income (loss) per share attributable to DASAN Zhone Solutions, Inc.
Basic	$ (0.19)	$ 0.11	$ (0.17)	$ 0.20
Diluted	$ (0.19)	$ 0.11	$ (0.17)	$ 0.20
Weighted average shares outstanding used to compute basic net income (loss) per share	21,384	16,683	18,732	16,425
Weighted average shares outstanding used to compute diluted net income (loss) per share	21,384	16,891	18,732	16,640