CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net earnings	$ 16,684	$ 8,890
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	13,738	15,712
Stock-based compensation	2,046	2,310
Amortization of deferred financing costs	413	993
Deferred income taxes	1,740	(3,072)
Net unrealized (gains) losses on foreign currency revaluation	(2,396)	2,679
Other, net	963	1,548
Changes in operating assets and liabilities:
Accounts receivable, net	(18,985)	(7,913)
Unbilled receivables	(2,017)	0
Inventories	(18,844)	(3,306)
Account payable	15,545	(3,563)
Accrued expenses	1,969	(2,031)
Other operating assets/liabilities, net	(6,687)	1,949
Net cash provided by operating activities	4,169	14,196
Cash flows from investing activities:
Purchases of property, plant and equipment	(8,770)	(3,756)
Proceeds from disposal/sale of property, plant and equipment	53	10
Proceeds from sale of marketable securities within rabbi trust	1,348	0
Purchase of marketable securities within rabbi trust	(1,348)	0
Net cash used in investing activities	(8,717)	(3,746)
Cash flows from financing activities:
Repayments of long-term debt	(8,268)	(25,208)
Dividends paid to common stockholders	(2,376)	(2,347)
Borrowings under revolving credit line	7,500	6,000
Repayments of revolving credit line	(7,500)	(2,000)
Reduction in notes payable	0	(55)
Net cash used in financing activities	(10,644)	(23,610)
Effect of exchange rate changes on cash and cash equivalents	134	1,855
Net decrease in cash and cash equivalents	(15,058)	(11,305)
Cash and cash equivalents - beginning of period	69,354	73,411
Cash and cash equivalents - end of period	54,296	62,106
Cash paid during the period for:
Income tax payments, net of refunds received	6,291	1,688
Interest payments	$ 3,485	$ 3,471