Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income (loss)	$ 2,521	$ (5,362)
Adjustments to reconcile net income (loss) to net cash provided by operations:
Depreciation and amortization	10,452	10,830
Stock-based compensation expense	1,468	1,279
Provision for deferred income taxes	(5,202)	1,569
Credit loss expense	185	50
Gain on sale of assets	(1,606)	(3,283)
Loss on extinguishment of debt	0	790
Amortization of original issue discount and debt issuance costs	178	1,082
Change in assets and liabilities:
Decrease in receivables	5,795	2,414
(Increase) decrease in inventories	(14,812)	6,694
Decrease in other assets	17	1,275
Increase in accounts payable	11,246	11,437
Decrease in accrued liabilities and other	(7,452)	(1,002)
Net cash provided by operating activities	2,790	27,773
Cash flows from investing activities:
Capital expenditures	(7,621)	(8,649)
Proceeds from sale of property, plant and equipment	575	8,027
Net cash used in investing activities	(7,046)	(622)
Cash flows from financing activities:
Borrowings on lines of credit	69,188	51,922
Payments on lines of credit	(65,202)	(56,922)
Purchases of Convertible Notes	0	(18,107)
Proceeds from term loan	0	8,258
Debt issuance costs	0	(196)
Purchases of treasury stock	(4)	(6)
Other financing activities	(2,711)	(1,561)
Net cash provided by (used in) financing activities	1,271	(16,612)
Effect of exchange rate changes on cash	(376)	(882)
Net increase (decrease) in cash, cash equivalents, and restricted cash	(3,361)	9,657
Cash, cash equivalents, and restricted cash at beginning of period	29,489	30,348
Cash, cash equivalents, and restricted cash at end of period	$ 26,128	$ 40,005