Consolidated Statements of Operations and Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenue:
Total revenue	$ 73,414	$ 80,811
Cost of revenue:
Total cost of revenue	57,904	62,689
Gross profit	15,510	18,122
Operating expenses:
Selling, general and administrative	17,074	20,982
Research and development	8,629	6,561
Goodwill impairment	3,738
Total operating expenses	29,441	27,543
Loss from operations	(13,931)	(9,421)
Other income, net	207	214
Loss before income taxes	(13,724)	(9,207)
Income tax (expense) benefit	(13)	149
Net loss	$ (13,737)	$ (9,058)
Basic loss per share	$ (1.08)	$ (0.72)
Diluted loss per share	$ (1.08)	$ (0.72)
Shares used in per share calculations:
Basic	12,712	12,594
Diluted	12,712	12,594
Comprehensive loss:
Net loss	$ (13,737)	$ (9,058)
Other comprehensive income (loss):
Foreign currency translation, net of tax	(17)	25
Unrealized gain on investments, net of tax	7
Total other comprehensive income (loss)	(10)	25
Comprehensive loss	(13,747)	(9,033)
Third Party Software [Member]
Revenue:
Total revenue	61,159	65,755
Cost of revenue:
Total cost of revenue	51,408	55,161
Gross profit	9,751	10,594
Proprietary Software [Member]
Revenue:
Total revenue	3,954	4,646
Cost of revenue:
Total cost of revenue	394	163
Gross profit	3,560	4,483
Professional Engineering Service [Member]
Revenue:
Total revenue	8,301	10,410
Cost of revenue:
Total cost of revenue	6,102	7,365
Gross profit	$ 2,199	$ 3,045