Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income from continuing operations	$ 1,584	$ 6,965
Adjustments to reconcile net income from continuing operations to cash provided by (used in) operating activities:
Deferred income taxes	(93)	1,725
Depreciation	4,008	3,898
Amortization	2,935	2,843
Loss on sales and disposals of property, plant, and equipment	30	1
Stock-based compensation	1,213	1,238
Change in operating assets and liabilities:
Accounts receivable	(19,876)	(7,444)
Inventories	2,820	2,912
Other current assets	(1,391)	(2,540)
Prepaid income tax	741	(958)
Other noncurrent assets	1,215	(4,421)
Accounts payable	10,854	9,166
Deferred revenue	10,168	151
Accrued payroll and employee benefits	(1,506)	(3,896)
Accrued settlement	(2,000)	(2,000)
Other current liabilities	(2,561)	(3,510)
Other long-term liabilities	(1,299)	3,992
Net cash provided by continuing operating activities	6,842	8,122
Net cash used in discontinued operating activities	(253)	(1,974)
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the sale of property, plant, and equipment	0	11
Capital expenditures on property, plant, and equipment	(2,248)	(5,711)
Net cash used in continuing investing activities	(2,248)	(5,700)
Net cash used in discontinued investing activities	0	(1,722)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of debt	(90,666)	(86,345)
Proceeds from debt	82,899	83,748
Debt issuance costs	0	(418)
Treasury stock acquisitions	(547)	(1,660)
Investment of noncontrolling interest	396	0
Net cash used in continuing financing activities	(7,918)	(4,675)
Net cash used in discontinued financing activities	0	(14)
Effect of exchange rate changes on cash and cash equivalents	153	(828)
Net decrease in cash and cash equivalents	(3,424)	(6,791)
Cash and cash equivalents at beginning of period	7,564	14,178
Cash and cash equivalents at end of period	4,140	7,387
Supplemental disclosure of cash flow information:
Interest paid	1,439	1,504
Income taxes paid	$ 898	$ 1,327