Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 4,862	$ 5,524
Adjustment to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,956	8,168
Unrealized foreign currency loss (gain)	746	(1,497)
Net gain on interest rate swaps	(104)	(129)
Fair value adjustments to earnout liabilities		(1,755)
Earnout payments	(2,050)	(7,797)
(Gain) / loss on sale of property and equipment	(9)	83
Gain on divestitures	(11,104)
Debt discount amortization	582	504
Share-based compensation expense	1,488	677
Bad debt expense	646	960
Inventory reserve expense	444	316
Deferred income tax expense	(744)	(46)
Changes in operating assets and liabilities, net of divestitures:
Accounts receivable	(6,539)	17,342
Costs and estimated earnings in excess of billings on uncompleted contracts	(2,911)	(1,646)
Inventories	(1,629)	(407)
Prepaid expense and other current assets	2,407	1,808
Deferred charges and other assets	(219)	792
Accounts payable and accrued expenses	12,605	(8,018)
Billings in excess of costs and estimated earnings on uncompleted contracts	3,110	(11,828)
Income taxes payable	1,589	(1,367)
Other liabilities	(267)	(9)
Net cash provided by operating activities	9,859	1,675
Cash flows from investing activities:
Acquisitions of property and equipment	(591)	(641)
Net cash proceeds from divestitures	30,692
Proceeds from sale of property and equipment	112	44
Net cash provided by (used in) investing activities	30,213	(597)
Cash flows from financing activities:
Net repayments on revolving credit lines	(3,792)	(1,107)
Repayments of debt	(30,756)	(7,656)
Deferred financing fees paid		(171)
Earnout payments		(7,396)
Proceeds from lease financing transaction	800
Payments on capital leases and sale-leaseback transactions	(344)	(375)
Proceeds from employee stock purchase plan, exercise of stock options, and dividend reinvestment plan	18	1,246
Dividends paid to common shareholders	(24)	(5,173)
Net cash used in financing activities	(34,098)	(20,632)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(793)	472
Net increase (decrease) in cash, cash equivalents and restricted cash	5,181	(19,082)
Cash, cash equivalents and restricted cash at beginning of period	30,659	48,006
Cash, cash equivalents and restricted cash at end of period	35,840	28,924
Cash paid during the period for:
Interest	2,924	2,842
Income taxes	3,318	$ 2,704
Non-cash transactions:
Net consideration receivable from divestiture and disposal of asset held for sale	$ 2,685