Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Revenue	$ 38,510,000	$ 35,291,000	$ 72,079,000	$ 66,524,000
Operating expenses:
Cost of revenue	25,605,000	23,431,000	48,631,000	45,077,000
Selling, general and administrative expenses	11,424,000	9,620,000	21,960,000	18,468,000
Depreciation of property and equipment	1,109,000	1,216,000	2,329,000	2,448,000
Amortization of intangible assets	722,000	395,000	1,444,000	789,000
Total operating expenses	38,860,000	34,662,000	74,364,000	66,782,000
Operating income (loss) from continuing operations	(350,000)	629,000	(2,285,000)	(258,000)
Foreign currency transaction losses (gains) on short-term intercompany balances	(957,000)	196,000	(1,509,000)	(811,000)
Interest expense (income), net	48,000	(12,000)	85,000	(41,000)
Other expense (income)	5,000	18,000	(194,000)	28,000
Income (loss) from continuing operations before income taxes	554,000	427,000	(667,000)	566,000
Income tax expense	879,000	460,000	1,506,000	664,000
Net loss from continuing operations	(325,000)	(33,000)	(2,173,000)	(98,000)
Discontinued operations (Note D)
Loss from discontinued operations	(349,000)	(559,000)	(685,000)	(1,046,000)
Other loss (income)	0	0	0	0
Income tax expense (benefit)	0	0	0	0
Net loss from discontinued operations	(349,000)	(559,000)	(685,000)	(1,046,000)
Net loss	$ (674,000)	$ (592,000)	$ (2,858,000)	$ (1,144,000)
Basic loss per common share (Note B)
Basic loss from continuing operations (in usd per share)	$ (0.01)	$ 0.00	$ (0.10)	$ 0.00
Basic loss from discontinued operations (in usd per share)	(0.02)	(0.03)	(0.03)	(0.05)
Total basic loss per common share (in usd per share)	(0.03)	(0.03)	(0.13)	(0.05)
Diluted loss per common share (Note B)
Diluted loss from continuing operations (in usd per share)	(0.01)	0.00	(0.10)	0.00
Diluted loss from discontinued operations (in usd per share)	(0.02)	(0.03)	(0.03)	(0.05)
Total diluted loss per common share (in usd per share)	$ (0.03)	$ (0.03)	$ (0.13)	$ (0.05)
Weighted-average common shares outstanding (Note B)
Basic (shares)	22,227	21,969	22,087	22,202
Diluted (shares)	22,227	21,969	22,087	22,202