CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net income including noncontrolling interests	$ 8,314	$ 4,047	$ 11,009	$ 1,379
Adjustments to reconcile net income to net cash provided by (used in) operating activities-
Amortization of identifiable intangible assets	1,740	2,066	3,669	4,146
Depreciation expense	2,799	2,946	5,645	6,003
Bad debt expense	(471)	1,745	(318)	2,486
Deferred tax expense (benefit)	1,598	676	476	(845)
Amortization of debt financing costs	58	58	115	115
Gain on sale of assets	(111)	(239)	(250)	(455)
Changes in the fair value of contingent earn-out obligations	27	37	54	67
Stock-based compensation expense	1,793	1,067	2,720	1,644
(Increase) decrease in-
Receivables, net	(18,928)	(19,001)	(30,920)	(19,906)
Inventories	(50)	436	(13)	368
Prepaid expenses and other current assets	(83)	1,434	111	579
Costs and estimated earnings in excess of billings	4,528	3,170	(3,110)	(3,239)
Other noncurrent assets	127	135	249	(1,942)
Increase (decrease) in-
Accounts payable and accrued liabilities	4,595	4,649	4,742	(5,700)
Billings in excess of costs and estimated earnings	799	3,269	2,269	1,648
Other long-term liabilities	(35)	298	(99)	629
Net cash provided by (used in) operating activities	6,700	6,793	(3,651)	(13,023)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(4,029)	(4,494)	(7,237)	(6,588)
Proceeds from sales of property and equipment	325	342	502	762
Proceeds from businesses sold		39	43	78
Cash paid for acquisitions, earn-outs and intangible assets, net of cash acquired		(12,213)		(12,228)
Net cash used in investing activities	(3,704)	(16,326)	(6,692)	(17,976)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net borrowings (payments) on revolving line of credit		18,000		18,000
Payments on other long-term debt	(2,000)	(4,000)	(2,000)	(4,100)
Debt financing costs	(552)		(552)
Payments of dividends to shareholders	(1,913)	(1,929)	(3,766)	(3,782)
Share repurchase program	(510)	(912)	(655)	(912)
Shares received in lieu of tax withholding	(622)	(543)	(622)	(543)
Excess tax benefit of stock-based compensation	243	(145)	243	(126)
Proceeds from exercise of options	269		284	36
Net cash provided by (used in) financing activities	(5,085)	10,471	(7,068)	8,573
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(2,089)	938	(17,411)	(22,426)
CASH AND CASH EQUIVALENTS, beginning of period	25,435	27,873	40,757	51,237
CASH AND CASH EQUIVALENTS, end of period	$ 23,346	$ 28,811	$ 23,346	$ 28,811