Information about Geographic Areas and Operating Segments - Profit and Loss Information of Segments (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Segment Reporting Information [Line Items]
Revenue	$ 19,203	$ 18,848	$ 39,881	$ 41,689
Cost of revenue	15,942	14,975	31,420	31,563
Gross profit	3,261	3,873	8,461	10,126
Operating expenses	6,979	6,492	14,657	12,704
Other income, net	47	59	91	114
Income tax benefit (expense)	(12)		(12)	106
Net loss	(3,683)	(2,560)	(6,117)	(2,358)
Third Party Software [Member]
Segment Reporting Information [Line Items]
Revenue	16,992	15,505	33,056	32,302
Cost of revenue	14,480	13,103	27,834	27,185
Gross profit	2,512	2,402	5,222	5,117
Proprietary Software [Member]
Segment Reporting Information [Line Items]
Revenue	281	481	2,076	3,135
Cost of revenue	100	39	141	71
Gross profit	181	442	1,935	3,064
Professional Engineering Services [Member]
Segment Reporting Information [Line Items]
Revenue	1,930	2,862	4,749	6,252
Cost of revenue	1,362	1,833	3,445	4,307
Gross profit	$ 568	$ 1,029	$ 1,304	$ 1,945

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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