Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income	$ 8,821	$ 12,430
Adjustments to reconcile net income to net cash provided by operating activities:
Loss (gain) on change in fair value of contingent consideration, net	258	(858)
Depreciation and amortization	4,052	4,951
Non-cash compensation expense	2,920	2,316
Changes in other operating items:
Accounts and other receivables	2,504	(16,059)
Costs and estimated earnings in excess of billings on uncompleted contracts	(11,806)	(11,473)
Prepaid expenses and other current assets	(447)	347
Accounts payable and accrued expenses	1,372	7,176
Billings in excess of costs and estimated earnings on uncompleted contracts	(3,638)	236
Contingent consideration payments in excess of fair value on acquisition date	(325)	(1,043)
Other	(586)	60
Net cash provided by (used in) operating activities	3,125	(1,917)
Cash flows from investing activities:
Additions to property, plant and equipment	(1,350)	(1,444)
Acquisitions, net of cash acquired	0	(8,666)
Other investing activities	(173)	0
Net cash used in investing activities	(1,523)	(10,110)
Cash flows from financing activities:
Proceeds from short-term borrowings	7,999	17,364
Repayment of long-term debt	(6,666)	0
Contingent consideration payments	(2,284)	(977)
Change in negative cash book balance	(1,779)	(2,477)
Repurchases of common stock in the open market	(1,101)	(1,388)
Other financing activities	141	75
Net cash provided by (used in) financing activities	(3,690)	12,597
Effect of exchange rate changes on cash and cash equivalents	(113)	(191)
Net decrease in cash and cash equivalents	(2,201)	379
Cash and cash equivalents at beginning of period	14,541	5,647
Cash and cash equivalents at end of period	12,340	6,026
Cash paid during the period for income taxes	$ 2,808	$ 9,156