Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Revenue, net	$ 36,721	$ 33,569
Operating expenses:
Cost of revenue	24,797	23,026
Selling, general and administrative expenses	11,264	10,535
Depreciation of property and equipment	1,223	1,220
Amortization of intangible assets	788	722
Total operating expenses	38,072	35,503
Operating loss from continuing operations	(1,351)	(1,934)
Foreign currency transaction gains on short-term intercompany balances	(220)	(552)
Interest expense, net	398	37
Other loss (income)	12	(199)
Loss from continuing operations before income tax	(1,541)	(1,220)
Income tax expense	787	627
Net loss from continuing operations	(2,328)	(1,847)
Discontinued operations:
Loss from discontinued operations	(333)	(336)
Other loss	0	0
Income tax expense (benefit)	0	0
Net loss from discontinued operations	(333)	(336)
Net loss	$ (2,661)	$ (2,183)
Basic loss per common share (Note 2):
Basic loss from continuing operations (in usd per share)	$ (0.10)	$ (0.08)
Basic loss from discontinued operations (in usd per share)	(0.01)	(0.02)
Total basic loss per common share (in usd per share)	(0.11)	(0.10)
Diluted loss per common share (Note 2):
Diluted loss from continuing operations (in usd per share)	(0.10)	(0.08)
Diluted loss from discontinued operations (in usd per share)	(0.01)	(0.02)
Total diluted loss per common share (in usd per share)	$ (0.11)	$ (0.10)
Weighted-average common shares outstanding (Note 2):
Basic (shares)	22,573	21,945
Diluted (shares)	22,573	21,945