Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (1,715)	$ 3,824
Adjustments to reconcile net (loss) income to cash (used in) provided by operating activities:
Deferred income taxes	(962)	526
Depreciation	6,083	6,049
Amortization	4,454	4,397
Equity in income of nonconsolidated investments	(38)	(5)
(Gain) loss on sales and disposals of property, plant, and equipment	(214)	30
Stock-based compensation	1,570	1,800
Gain on asset divestitures	(44)	(2,741)
Change in operating assets and liabilities:
Accounts receivable	(23,760)	(6,384)
Contract assets	(1,037)	(3,321)
Inventories	(21,571)	(9,344)
Other current assets	2,309	(469)
Other noncurrent assets	2,468	2,063
Accounts payable	12,307	(892)
Deferred revenue	7,493	6,046
Accrued payroll and employee benefits	(417)	852
Accrued settlement	(4,000)	(4,000)
Other current liabilities	54	(3,461)
Other long-term liabilities	(1,816)	(1,780)
Net cash used in continuing operating activities	(18,836)	(6,810)
Net cash used in discontinued operating activities	0	(253)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the sale of property, plant, and equipment	259	0
Capital expenditures on property, plant, and equipment	(4,559)	(3,568)
Proceeds from asset divestitures	8,800	22,707
Acquisitions, net of cash acquired	(58,561)	(229)
Net cash (used in) provided by continuing investing activities	(54,061)	18,910
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of debt	(128,771)	(147,224)
Proceeds from debt	197,926	134,705
Debt issuance costs	(182)	(358)
Treasury stock acquisitions	(405)	(549)
Investment of noncontrolling interest	0	396
Net cash provided by (used in) continuing financing activities	68,568	(13,030)
Effect of exchange rate changes on cash and cash equivalents	(1,100)	24
Net decrease in cash and cash equivalents	(5,429)	(1,159)
Cash and cash equivalents at beginning of period	10,372	7,564
Cash and cash equivalents at end of period	4,943	6,405
Supplemental disclosure of cash flow information:
Interest paid	1,337	2,205
Income taxes (received) paid	$ (5,151)	$ 1,215