Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (1,586)	$ (1,270)
Adjustments to reconcile net loss to cash (used in) provided byoperating activities:
Deferred income taxes	(574)	(712)
Depreciation	1,938	1,990
Amortization	1,436	1,465
Equity in income of nonconsolidated investments	(87)	0
Loss on sales and disposals of property, plant, and equipment	23	10
Stock-based compensation	258	827
Change in operating assets and liabilities:
Accounts receivable	(4,556)	(7,213)
Contract assets	1,116	52
Inventories	(4,781)	(481)
Other current assets	(4,648)	(592)
Other noncurrent assets	818	451
Accounts payable	4,680	11,435
Deferred revenue	5,907	8,152
Accrued payroll and employee benefits	(4,181)	(3,495)
Other current liabilities	(2,377)	(2,384)
Other long-term liabilities	(1,022)	(621)
Net cash (used in) provided by continuing operating activities	(7,636)	7,614
Net cash used in discontinued operating activities	0	(184)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the sale of property, plant, and equipment	30	0
Capital expenditures on property, plant, and equipment	(1,764)	(1,327)
Proceeds from asset divestiture	1,195	0
Net cash used in continuing investing activities	(539)	(1,327)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of debt	(30,892)	(43,321)
Proceeds from debt	35,301	35,026
Treasury stock acquisitions	(397)	(547)
Investment of noncontrolling interest	0	396
Net cash provided by (used in) continuing financing activities	4,012	(8,446)
Effect of exchange rate changes on cash and cash equivalents	30	(206)
Net decrease in cash and cash equivalents	(4,133)	(2,549)
Cash and cash equivalents at beginning of period	10,372	7,564
Cash and cash equivalents at end of period	6,239	5,015
Supplemental disclosure of cash flow information:
Interest paid	369	653
Income taxes (received) paid	$ (44)	$ 46