CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss) including noncontrolling interests	$ 4,047	$ 3,162	$ 1,379	$ (2,008)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities-
Amortization of identifiable intangible assets	2,066	1,700	4,146	3,358
Depreciation expense	2,946	3,013	6,003	6,174
Bad debt expense	1,745	(128)	2,486	711
Deferred tax expense (benefit)	676	794	(845)	(1,316)
Amortization of debt financing costs	58	56	115	112
Gain on sale of assets	(239)	(19)	(455)	(104)
Changes in the fair value of contingent earn-out obligations	37	(584)	67	(489)
Stock-based compensation expense	1,067	1,094	1,644	2,332
(Increase) decrease in-
Receivables, net	(19,001)	(20,835)	(19,906)	(22,555)
Inventories	436	(322)	368	(519)
Prepaid expenses and other current assets	1,434	972	579	2,203
Costs and estimated earnings in excess of billings	3,170	(724)	(3,239)	225
Other noncurrent assets	135	(1,533)	(1,942)	(2,323)
Increase (decrease) in-
Accounts payable and accrued liabilities	4,649	9,546	(5,700)	(7,846)
Billings in excess of costs and estimated earnings	3,269	(908)	1,648	(1,864)
Other long-term liabilities	298	339	629	466
Net cash provided by (used in) operating activities	6,793	(4,377)	(13,023)	(23,443)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(4,494)	(1,544)	(6,588)	(3,904)
Proceeds from sales of property and equipment	342	134	762	381
Proceeds from businesses sold	39	39	78	78
Sale of marketable securities				2,000
Cash paid for acquisitions, earn-outs and intangible assets, net of cash acquired	(12,213)	(521)	(12,228)	(2,321)
Net cash used in investing activities	(16,326)	(1,892)	(17,976)	(3,766)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net borrowings on revolving line of credit	18,000		18,000
Payments on other long-term debt	(4,000)	(1,289)	(4,100)	(1,289)
Payments of dividends to shareholders	(1,929)	(1,923)	(3,782)	(3,803)
Share repurchase program	(912)	(3,712)	(912)	(3,712)
Shares received in lieu of tax withholding	(543)	(654)	(543)	(654)
Excess tax benefit of stock-based compensation	(145)	217	(126)	204
Proceeds from exercise of options		95	36	218
Net cash provided by (used in) financing activities	10,471	(7,266)	8,573	(9,036)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	938	(13,535)	(22,426)	(36,245)
CASH AND CASH EQUIVALENTS, beginning of period	27,873	63,636	51,237	86,346
CASH AND CASH EQUIVALENTS, end of period	$ 28,811	$ 50,101	$ 28,811	$ 50,101