Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,322	$ 390
Adjustments to reconcile net income to cash used in operating activities:
Deferred income taxes	(1,710)	(173)
Depreciation	4,989	3,814
Amortization	2,740	2,855
Equity in income of nonconsolidated investments	(16)	(87)
Gain on sales and disposals of property, plant, and equipment	(366)	(214)
Stock-based compensation	1,829	1,183
Loss (gain) on asset divestitures	3,074	(491)
Change in operating assets and liabilities:
Accounts receivable	6,584	(17,327)
Contract assets	(3,033)	2,190
Inventories	(13,068)	(10,695)
Other current assets	(1,251)	(3,573)
Other noncurrent assets	(865)	1,715
Accounts payable	465	9,347
Deferred revenue	627	5,301
Accrued payroll and employee benefits	(1,885)	(2,943)
Accrued settlement	(2,000)	(2,000)
Other current liabilities	(941)	(1,748)
Other long-term liabilities	172	(926)
Net cash used in operating activities	(3,333)	(13,382)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the sale of property, plant, and equipment	539	237
Capital expenditures on property, plant, and equipment	(1,495)	(3,048)
Proceeds from business dispositions	7,706	1,195
Acquisitions, net of cash acquired	966	(5,712)
Net cash provided by (used in) investing activities	7,716	(7,328)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of debt	(95,251)	(78,093)
Proceeds from debt	92,331	96,970
Treasury stock acquisitions	(977)	(401)
Investment of noncontrolling interest	334	0
Net cash (used in) provided by financing activities	(3,563)	18,476
Effect of exchange rate changes on cash and cash equivalents	178	(477)
Net increase (decrease) in cash and cash equivalents	998	(2,711)
Cash and cash equivalents at beginning of period	2,882	10,372
Cash and cash equivalents at end of period	3,880	7,661
Supplemental disclosure of cash flow information:
Interest paid	2,889	662
Income taxes (received) paid	$ (331)	$ 389