Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Revenue:
Software	$ 82,170	$ 86,208
Professional engineering service	15,271	20,393
Total revenue	97,441	106,601
Cost of revenue:
Software	68,182	70,937
Professional engineering service	13,439	15,194
Total cost of revenue	81,621	86,131
Gross profit	15,820	20,470
Operating expenses:
Selling, general and administrative	14,119	12,400
Research and development	2,859	1,639
Total operating expenses	16,978	14,039
Income (loss) from operations	(1,158)	6,431
Other income (expense), net	247	132
Income (loss) before income taxes	(911)	6,563
Income tax expense	(141)	(470)
Net income (loss)	$ (1,052)	$ 6,093
Basic income (loss) per share	$ (0.09)	$ 0.51
Diluted income (loss) per share	$ (0.09)	$ 0.49
Shares used in calculation of income (loss) per share:
Basic	12,260	11,938
Diluted	12,260	12,419
Comprehensive income (loss):
Net income (loss)	$ (1,052)	$ 6,093
Other comprehensive income (loss):
Foreign currency translation, net of tax	(79)	19
Change in net unrealized gains (losses) on investments, net of tax	7	(4)
Total other comprehensive income (loss)	(72)	15
Comprehensive income (loss):	$ (1,124)	$ 6,108