Consolidated Statements of Operations and Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Statements of Operations
Revenues	$ 203,117	$ 184,081	$ 179,583
Operating expenses:
Cost of revenues	137,482	126,069	115,064
Selling, general and administrative expenses	49,102	40,735	40,390
Depreciation of property and equipment	5,401	4,903	3,505
Amortization of intangible assets	4,991	4,131	3,227
Total operating expenses	196,976	175,838	162,186
Operating income	6,141	8,243	17,397
Gain on bargain purchase, net (Note 14)			2,388
Foreign currency transaction (gains) losses on short-term intercompany balances	417	422	(1,595)
Interest expense	(1,904)	(1,451)	(3,229)
Interest income	288	146	204
Loss on debt extinguishment (Note 7)		(1,381)
Earnings before income taxes	4,108	5,135	18,355
Income tax expense (Note 9)	1,292	1,882	3,028
Net earnings	2,816	3,253	15,327
Basic earnings per common share (Note 5)	$ 0.11	$ 0.14	$ 0.67
Diluted earnings per common share (Note 5)	$ 0.11	$ 0.13	$ 0.65
Weighted-average common shares outstanding (Note 5):
Basic	24,634	23,906	22,915
Diluted	25,029	24,144	23,560
Statements of Comprehensive Income
Net earnings	2,816	3,253	15,327
Foreign currency translation adjustments	(519)	380	183
Comprehensive income	$ 2,297	$ 3,633	$ 15,510