Condensed Consolidated Statements of Income and Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Statements of Income
Revenues	$ 52,087	$ 51,751	$ 155,394	$ 153,173
Operating expenses:
Cost of revenues	32,461	34,125	99,991	103,242
Selling, general and administrative expenses	13,242	12,417	38,575	37,144
Depreciation of property and equipment	1,716	1,464	4,808	3,859
Amortization of intangible assets	1,431	1,277	5,217	3,527
Total operating expenses	48,850	49,283	148,591	147,772
Operating income	3,237	2,468	6,803	5,401
Foreign currency transaction (gains) losses on short-term intercompany balances	(348)	1,055	(190)	176
Interest expense, net	515	398	1,548	1,223
Earnings before income taxes	3,070	1,015	5,445	4,002
Income tax expense	505	593	1,586	2,498
Net earnings	2,565	422	3,859	1,504
Basic earnings per common share (Note B)	$ 0.10	$ 0.02	$ 0.15	$ 0.06
Diluted earnings per common share (Note B)	$ 0.10	$ 0.02	$ 0.15	$ 0.06
Weighted-average common shares outstanding (Note B):
Basic	25,541	24,744	25,370	24,510
Diluted	26,250	25,213	25,942	24,901
Statements of Comprehensive Income (Loss)
Net earnings	2,565	422	3,859	1,504
Foreign currency translation adjustments	136	(636)	430	(615)
Comprehensive income (loss)	$ 2,701	$ (214)	$ 4,289	$ 889