Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income	$ 4,107	$ 4,317
Adjustments to reconcile net income to net cash provided by operating activities:
Loss (gain) on change in fair value of contingent consideration, net	203	(377)
Depreciation and amortization	2,068	2,408
Non-cash compensation expense	1,338	1,112
Changes in other operating items:
Accounts and other receivables	11,430	(542)
Costs and estimated earnings in excess of billings on uncompleted contracts	(6,733)	(10,338)
Prepaid expenses and other current assets	(3,866)	(1,383)
Accounts payable and accrued expenses	(1,674)	1,938
Billings in excess of costs and estimated earnings on uncompleted contracts	(3,286)	4,316
Contingent consideration payments in excess of fair value on acquisition date	0	(667)
Other	(390)	(63)
Net cash provided by operating activities	3,197	721
Cash flows from investing activities:
Additions to property, plant and equipment	(600)	(916)
Net cash used in investing activities	(600)	(916)
Cash flows from financing activities:
Proceeds from short-term borrowings	735	2,370
Repayments of Long-term Debt	(3,333)	0
Contingent consideration payments	0	(338)
Change in negative cash book balance	(1,518)	(1,898)
Repurchases of common stock in the open market	(364)	(320)
Other financing activities	25	45
Net cash used in financing activities	(4,455)	(141)
Effect of exchange rate changes on cash and cash equivalents	(548)	(84)
Net decrease in cash and cash equivalents	(2,406)	(420)
Cash and cash equivalents at beginning of period	14,541	5,647
Cash and cash equivalents at end of period	12,135	5,227
Supplemental disclosures of cash flow information:
Cash paid during the period for income taxes	$ 2,251	$ 2,999