Information about Geographic Areas and Operating Segments - Profit and Loss Information of Segments (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Revenue	$ 22,841	$ 25,439
Cost of revenue	16,588	21,143
Gross profit	6,253	4,296
Operating expenses	6,212	3,647
Other income, net	55	21
Income tax benefit (expense)	106	(170)
Net income	202	500
Software [Member]
Segment Reporting Information [Line Items]
Revenue	19,451	20,167
Cost of revenue	14,114	17,161
Gross profit	5,337	3,006
Professional Engineering Services [Member]
Segment Reporting Information [Line Items]
Revenue	3,390	5,272
Cost of revenue	2,474	3,982
Gross profit	$ 916	$ 1,290

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
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-Subparagraph (SX 210.5-03.2(a),(d))
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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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