Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net earnings (loss)	$ 9,244	$ (2,391)
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities:
Impairment of goodwill	0	8,891
Depreciation and amortization	12,322	12,265
Stock-based compensation	1,780	2,268
Amortization of deferred financing costs	485	349
Deferred income taxes	(1,821)	(1,765)
Net unrealized gains/losses on foreign currency revaluation	1,066	(478)
Gain on sale of property	(32)	(4,257)
Other, net	735	1,172
Changes in operating assets and liabilities:
Accounts receivable, net	6,517	12,395
Unbilled receivables	(3,065)	931
Inventories	4,419	8,383
Accounts payable	(4,597)	(16,249)
Accrued expenses	3,694	(874)
Other operating assets/liabilities, net	4,022	(1,712)
Net cash provided by operating activities	34,769	18,928
Cash flows from investing activities:
Purchases of property, plant and equipment	(4,501)	(8,188)
Proceeds from disposal/sale of property, plant and equipment	54	5,787
Net cash used in investing activities	(4,447)	(2,401)
Cash flows from financing activities:
Dividends paid to common stockholders	(2,422)	(2,403)
Deferred financing costs	(600)	0
Borrowings under revolving credit line	0	12,000
Repayments of revolving credit line	(10,000)	(12,000)
Repayments of long-term debt	(8,179)	(2,231)
Repurchase and retirement of Class A common stock	0	(448)
Net cash used in financing activities	(21,201)	(5,082)
Effect of exchange rate changes on cash and cash equivalents	(281)	(540)
Net increase in cash and cash equivalents	8,840	10,905
Cash and cash equivalents - beginning of period	72,289	53,911
Cash and cash equivalents - end of period	81,129	64,816
Supplementary information:
Income taxes, net of refunds received	1,571	3,497
Interest payments	$ 3,408	$ 3,815