CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Net revenue	$ 22,162	$ 18,120
Cost of revenue	14,470	10,620
Gross profit	7,692	7,500
Operating expenses:
Research and development	2,337	2,596
Selling and marketing	4,064	4,497
General and administrative	2,125	2,191
Restructuring and severance	388	65
Total operating expenses	8,914	9,349
Loss from operations	(1,222)	(1,849)
Non-operating income (expense):
Interest expense, net	(245)	(252)
Foreign currency gains (losses), net	46	86
Loss before income tax provision	(1,421)	(2,015)
Income tax provision	(44)	(32)
Net loss	(1,465)	(2,047)
Other comprehensive loss:
Foreign currency translation adjustment	(283)	(480)
Comprehensive loss	$ (1,748)	$ (2,527)
Net loss per common share:
Basic	$ (0.09)	$ (0.13)
Diluted	$ (0.09)	$ (0.13)
Weighted average common shares outstanding, basic and diluted	18,443	17,521