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 income (loss)	$ 17,860	$ 12,732	$ (1,190)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Goodwill and intangible asset impairment loss			10,163
Gain on reversal of deferred rent liability	(1,041)
Income tax benefit on reduction of uncertain tax position liability	(891)
Gain on change in fair value of contingent consideration	(517)	(1,313)
Depreciation and amortization	6,187	4,230	3,380
Non-cash compensation expense	3,100	2,012	1,638
Deferred income taxes	279	1,064	1,862
Changes in other operating items, net of acquired amounts:
Accounts and other receivables	(4,955)	(13)	2,329
Costs and estimated earnings in excess of billings on uncompleted contracts	(701)	(1,771)	(1,163)
Prepaid expenses and other current assets	(1,599)	1,754	617
Accounts payable and accrued expenses	(479)	5,145	(2,076)
Billings in excess of costs and estimated earnings on uncompleted contracts	168	2,084	2,815
Contingent consideration payments in excess of fair value on acquisition date	(721)
Other	(491)	266	401
Net cash provided by operating activities	16,199	26,190	18,776
Cash flows from investing activities:
Additions to property, plant and equipment	(3,975)	(1,531)	(1,174)
Acquisitions, net of cash acquired	(36,077)	(5,121)	(24,237)
Other investing activities	(157)
Net cash used in investing activities	(40,209)	(6,652)	(25,411)
Cash flows from financing activities:
Net repayment of short-term borrowings			(3,234)
Equity investment by Sagard Capital Partners, L.P.			19,581
Contingent consideration payments	(1,238)	(775)
Change in negative cash book balance	1,883	5	(595)
Repurchases of common stock in the open market	(1,414)	(266)	(2,166)
Income tax benefit from stock-based compensation	131	129
Proceeds from issuance of common stock	355	39	51
Other financing activities	(345)	(502)	(408)
Net cash provided by (used in) financing activities	(628)	(1,370)	13,229
Effect of exchange rate changes on cash and cash equivalents	(113)	(69)	248
Net change in cash and cash equivalents	(24,751)	18,099	6,842
Cash and cash equivalents at beginning of year	28,902	10,803	3,961
Cash and cash equivalents at end of year	4,151	28,902	10,803
Cash paid during the year for:
Interest	100	36	46
Income taxes	10,078	5,570	3,110
Non-cash investing and financing activities:
Accrued contingent consideration	$ 112	$ 2,880	$ 5,058