Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]
Revenue	$ 195,216	$ 208,503	$ 203,117
Operating expenses:
Cost of revenue	122,545	134,390	137,482
Selling, general and administrative expenses	52,757	52,527	49,102
Depreciation of property and equipment	8,231	7,084	5,401
Amortization of intangible assets	4,997	7,224	4,991
Impairment charges	4,207	0	0
Total operating expenses	192,737	201,225	196,976
Operating income	2,479	7,278	6,141
Foreign currency transaction (gains) losses on short-term intercompany balances	(13)	(377)	417
Interest expense	(138)	(1,116)	(1,904)
Interest income	215	150	288
Income before income taxes	2,569	6,689	4,108
Income tax expense	2,755	1,297	1,292
Net income (loss)	$ (186)	$ 5,392	$ 2,816
Basic earnings per common share (usd per share)	$ (0.01)	$ 0.21	$ 0.11
Diluted earnings per common share (usd per share)	$ (0.01)	$ 0.21	$ 0.11
Weighted-average common shares outstanding:
Basic (shares)	29,169	25,566	24,634
Diluted (shares)	29,169	26,137	25,029