Condensed Consolidated Statements of Income and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenue:
Software	$ 19,451	$ 20,167
Professional engineering service	3,390	5,272
Total revenue	22,841	25,439
Cost of revenue:
Software	14,114	17,161
Professional engineering service	2,474	3,982
Total cost of revenue	16,588	21,143
Gross profit	6,253	4,296
Operating expenses:
Selling, general and administrative	4,865	3,206
Research and development	1,347	441
Total operating expenses	6,212	3,647
Income from operations	41	649
Other income, net	55	21
Income before income taxes	96	670
Income tax benefit (expense)	106	(170)
Net income	$ 202	$ 500
Basic income per share	$ 0.02	$ 0.04
Diluted income per share	$ 0.02	$ 0.04
Shares used in calculation of income per share:
Basic	12,550	12,102
Diluted	12,848	12,531
Comprehensive income:
Net income	$ 202	$ 500
Other comprehensive income:
Foreign currency translation, net of tax	(7)	21
Change in unrealized gains (losses) on investments, net of tax	5	(25)
Total other comprehensive income	(2)	(4)
Comprehensive income	$ 200	$ 496