Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 9,078	$ 12,389
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,339	5,745
Provision for bad debts - accounts receivable	719	409
Share-based compensation expense	997	1,867
Deferred income tax benefit	(2,136)	(278)
Gain on sale of property, plant and equipment	(5)
Change in fair value of acquisition-related contingent liabilities	(272)	(1,212)
Changes in assets and liabilities, net of acquisition of business:
Accounts receivable - trade	(12,251)	(5,542)
Accounts receivable - other	481	(401)
Contract assets	11,206	(3,779)
Inventories	(595)	5,742
Prepaid expenses and other current assets	(7,051)	(226)
Other assets	(2,233)	(2,343)
Accounts payable and other current liabilities	5,523	(1,077)
Long-term pension liability	1,292	292
Other long-term liabilities	750	(283)
Net cash provided by operating activities	11,842	11,303
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to property, plant and equipment	(6,424)	(3,881)
Proceeds from disposals of property, plant and equipment	5
Acquisition of businesses, net of acquired cash		(85,597)
Net cash used in investing activities	(6,419)	(89,478)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from borrowings of debt	125,121	170,713
Repayment of debt	(123,600)	(91,423)
Payment of cash dividends	(4,533)	(4,335)
Payment of acquisition-related contingent liability	(961)	(3,032)
Proceeds received on exercise of stock options	283	432
Tax benefit from vesting of acquisition-related restricted stock	30	445
Tax withholding on exercise of stock rights		(17)
Common stock reacquired and retired	(1,243)	(268)
Net cash provided by (used in) financing activities	(4,903)	72,515
Effect of currency exchange rates on cash	(430)	(174)
Net increase (decrease) in cash and cash equivalents	90	(5,834)
Cash and cash equivalents balance, beginning of year	5,362	8,130
Cash and cash equivalents balance, end of period	$ 5,452	$ 2,296