Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash flows from operating activities:
Net earnings	$ 2,816	$ 3,253	$ 15,327
Adjustments to reconcile earnings from operations to net cash provided by operating activities:
Gain on bargain purchase, net			(2,388)
Depreciation and amortization	10,392	9,034	6,732
Amortization of debt discount, premium and deferred loan costs	188	1,539	789
Stock-based compensation expense	5,093	3,980	3,345
Loss on disposals of property, plant and equipment, net	6	15	109
Foreign currency transaction (gains) losses on short-term intercompany balances	417	422	(1,595)
Deferred income taxes	(2,151)	(1,354)	(516)
Changes in operating assets and liabilities, net of business acquisitions:
Restricted cash		193	(195)
Billed receivables	1,717	(1,757)	1,092
Unbilled receivables	(5,419)	(320)	1,466
Prepaid expenses and other current assets	(718)	(1,400)	183
Other assets	(455)	56	55
Accounts payable and accrued expenses	110	(2,529)	(936)
Accrued payroll and related expenses	8,289	(6,255)	(3,163)
Refund liabilities	(837)	(39)	(567)
Deferred revenues	(338)	(139)	405
Noncurrent compensation obligations	432	(707)	(1,589)
Other long-term liabilities	(249)	(523)	(388)
Net cash provided by operating activities	19,293	3,469	18,166
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(3,155)	(7,741)	(2,029)
Purchases of property and equipment, net of disposal proceeds	(8,287)	(6,934)	(5,511)
Net cash used in investing activities	(11,442)	(14,675)	(7,540)
Cash flows from financing activities:
Repayments of former credit facility (Note 7)		(14,070)	(5,315)
Repayments of long-term debt and capital lease obligations	(3,000)	(3,260)
Proceeds from term loan (Note 7)		15,000
Payments for deferred loan costs	(6)	(666)	(50)
Payments of deferred acquisition consideration	(1,694)	(409)
Repurchases of common stock			(246)
Restricted stock remitted by employees for taxes	(1,063)	(214)	(116)
Proceeds from stock option exercises	353	109	26
Net cash used in financing activities	(5,410)	(3,510)	(5,701)
Effect of exchange rates on cash and cash equivalents	(552)	138	1,413
Net change in cash and cash equivalents	1,889	(14,578)	6,338
Cash and cash equivalents at beginning of year	18,448	33,026	26,688
Cash and cash equivalents at end of year	20,337	18,448	33,026
Supplemental cash flow statement information:
Cash paid during the year for interest	422	570	1,939
Cash paid during the year for income taxes, net of refunds received	4,235	2,743	4,247
Deferred and contingent business acquisition consideration (Note 14)	$ 5,643	$ 1,638	$ 4,210