Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues:
Revenues	$ 21,914	$ 20,213	$ 63,023	$ 66,069
Cost of Solutions
Direct costs of solutions	8,571	10,539	23,984	32,651
Amortization of acquired technology	144	144	431	431
Total cost of solutions	8,715	10,683	24,415	33,082
Gross profit	13,199	9,530	38,608	32,987
Operating expenses:
Research and development	8,435	6,755	23,993	21,100
Selling, general and administrative	5,990	5,507	19,940	17,801
Amortization of other acquired intangible assets	174	108	436	326
Restructuring charges			92
Total operating expenses	14,599	12,370	44,461	39,227
Loss from operations	(1,400)	(2,840)	(5,853)	(6,240)
Interest and other income (expense), net	202	223	307	283
Loss before income taxes	(1,198)	(2,617)	(5,546)	(5,957)
Income tax benefit	(511)	(535)	(1,458)	(1,355)
Net loss	(687)	(2,082)	(4,088)	(4,602)
Other comprehensive loss:
Foreign currency translation adjustments, net of tax	(461)	(168)	(477)	(414)
Comprehensive loss	$ (1,148)	$ (2,250)	$ (4,565)	$ (5,016)
Net loss per share:
Basic (in dollars per share)	$ (0.02)	$ (0.06)	$ (0.13)	$ (0.14)
Diluted (in dollars per share)	$ (0.02)	$ (0.06)	$ (0.13)	$ (0.14)
Weighted average common shares:
Basic (in shares)	32,392	32,184	32,405	32,105
Diluted (in shares)	32,392	32,184	32,405	32,105
Solutions [Member]
Revenues:
Revenues	$ 16,208	$ 13,976	$ 46,298	$ 47,431
Gainshare Performance Incentives [Member]
Revenues:
Revenues	$ 5,706	$ 6,237	$ 16,725	$ 18,638