Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net income	$ 7,092	$ 2,302
Adjustment to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,328	6,943
Unrealized foreign currency (gain) loss	(414)	2,147
Net loss on interest rate swaps	404
Fair value adjustments to earnout liabilities	1,033	4,438
Loss on sale of property and equipment	189	225
Non-cash interest expense	539	323
Share-based compensation expense	1,149	854
Bad debt expense	294	69
Inventory reserve expense	838	256
Deferred income taxes	(644)	(894)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable	14,612	(7,442)
Costs and estimated earnings in excess of billings on uncompleted contracts	1,248	(7,439)
Inventories	4,443	408
Prepaid expense and other current assets	(3,755)	181
Deferred charges and other assets	1,119	361
Accounts payable and accrued expenses	(3,613)	2,704
Billings in excess of costs and estimated earnings on uncompleted contracts	11,160	(420)
Income taxes payable	(1,081)	354
Other liabilities	(871)	(3,665)
Net cash provided by operating activities	44,070	1,705
Cash flows from investing activities:
Acquisitions of property and equipment	(552)	(341)
Proceeds from sale of property and equipment	291	2,396
Net cash (used in) provided by investing activities	(261)	2,055
Cash flows from financing activities:
Decrease in restricted cash	319
Net (repayments) borrowings on revolving credit lines	(9,202)	3,469
Repayments of debt	(16,207)	(4,452)
Earnout payments	(2,341)	(1,755)
Proceeds from sale-leaseback transactions	11,000
Payments on capital lease and sale-leaseback financing liability	(33)
Proceeds from employee stock purchase plan and exercise of stock options	471	195
Repurchases of common stock	(188)
Dividends paid to common shareholders	(4,486)	(3,490)
Net cash used in financing activities	(20,667)	(6,033)
Effect of exchange rate changes on cash and cash equivalents	(730)
Net increase (decrease) in cash and cash equivalents	22,412	(2,273)
Cash and cash equivalents at beginning of period	34,194	19,362
Cash and cash equivalents at end of period	56,606	17,089
Cash paid during the period for:
Interest	3,523	1,785
Income taxes	1,747	$ 595
Noncash transactions
Property, plant and equipment acquired under capital leases	3,296
Earnout settled through an exchange of accounts receivable	$ 3,190