Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Revenue, net	$ 140,844	$ 138,302	$ 161,552
Operating expenses:
Cost of revenue	91,299	93,169	110,890
Selling, general and administrative expenses	39,399	32,284	38,581
Depreciation of property and equipment	5,033	5,317	6,025
Amortization of intangible assets	1,832	2,458	3,531
Total operating expenses	137,563	133,228	159,027
Operating income from continuing operations	3,281	5,074	2,525
Foreign currency transaction losses on short-term intercompany balances	84	2,165	2,003
Interest expense	(107)	(71)	(351)
Interest income	260	261	428
Other (income) loss	(121)	1,191	57
Income from continuing operations before income taxes	3,471	1,908	542
Income tax expense	1,242	369	3,241
Net income (loss) from continuing operations	2,229	1,539	(2,699)
Discontinued operations:
Loss from discontinued operations	(1,324)	(4,765)	(4,827)
Income tax expense (benefit)	0	0	0
Net loss from discontinued operations	(1,324)	(4,765)	(4,827)
Net income (loss) from continuing operations	$ 905	$ (3,226)	$ (7,526)
Basic earnings (loss) per common share:
Basic earnings (loss) from continuing operations (in USD per share)	$ 0.10	$ 0.06	$ (0.09)
Basic loss from discontinued operations (in USD per share)	(0.06)	(0.18)	(0.17)
Total basic earnings (loss) per common share (in USD per share)	0.04	(0.12)	(0.26)
Diluted earnings (loss) per common share:
Diluted earnings (loss) from continuing operations (in USD per share)	0.10	0.06	(0.09)
Diluted loss from discontinued operations (in USD per share)	(0.06)	(0.18)	(0.17)
Total diluted loss per common share (in USD per share)	$ 0.04	$ (0.12)	$ (0.26)
Weighted-average common shares outstanding:
Basic (shares)	21,969	25,868	28,707
Diluted (shares)	22,016	25,904	28,707