Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2017	Sep. 30, 2016
Income Statement [Abstract]
Revenue	$ 42,467	$ 35,137	$ 114,546	$ 101,661
Operating expenses:
Cost of revenue	26,675	22,367	75,306	67,444
Selling, general and administrative expenses	12,189	9,883	34,149	28,351
Depreciation of property and equipment	1,133	1,376	3,462	3,824
Amortization of intangible assets	722	393	2,166	1,182
Total operating expenses	40,719	34,019	115,083	100,801
Operating income (loss) from continuing operations	1,748	1,118	(537)	860
Foreign currency transaction gains on short-term intercompany balances	(418)	(165)	(1,927)	(976)
Interest expense (income), net	142	(14)	227	(55)
Other loss (income)	17	(168)	(177)	(140)
Income from continuing operations before income taxes	2,007	1,465	1,340	2,031
Income tax expense (benefit)	930	(685)	2,436	(21)
Net income (loss) from continuing operations	1,077	2,150	(1,096)	2,052
Discontinued operations (Note D)
(Loss) income from discontinued operations	(344)	133	(1,029)	(914)
Other loss (income)	0	0	0	0
Income tax expense (benefit)	0	0	0	0
Net (loss) income from discontinued operations	(344)	133	(1,029)	(914)
Net income (loss)	$ 733	$ 2,283	$ (2,125)	$ 1,138
Basic loss per common share (Note B)
Basic loss from continuing operations (in usd per share)	$ 0.05	$ 0.10	$ (0.05)	$ 0.09
Basic loss from discontinued operations (in usd per share)	(0.02)	0.01	(0.05)	(0.04)
Total basic loss per common share (in usd per share)	0.03	0.11	(0.10)	0.05
Diluted earnings (loss) per common share (Note B)
Diluted loss from continuing operations (in usd per share)	0.05	0.10	(0.05)	0.09
Diluted loss from discontinued operations (in usd per share)	(0.02)	0.01	(0.05)	(0.04)
Total diluted loss per common share (in usd per share)	$ 0.03	$ 0.11	$ (0.10)	$ 0.05
Weighted-average common shares outstanding (Note B)
Basic (shares)	22,498	21,847	22,225	22,084
Diluted (shares)	22,761	21,874	22,225	22,114