Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Operating activities:
Net loss	$ (40,660)	$ (38,515)
Adjustments to reconcile net loss to net cash from operating activities:
Depreciation	7,872	8,759
Amortization of deferred financing costs and debt discount	6,206	11,942
Noncash interest paid in kind	10,503	15,912
Unrealized gain on embedded debt conversion option	(2,010)	0
Impairment of goodwill	2,676	0
Loss on sale of property, plant & equipment	169	256
Unrealized foreign currency loss (gain)	711	(771)
Deferred income taxes	(2,543)	(5,605)
Noncash rent expense	243	247
Noncash compensation expense	798	2,862
Other, net	(528)	0
Changes in assets and liabilities:
Accounts receivable	32,526	5,143
Inventories	15,816	16,286
Prepaid expenses and other current assets	1,449	3,963
Other noncurrent assets	765	(428)
Prepaid pension costs	(2,915)	(1,190)
Accounts payable	(12,928)	(1,014)
Accrued payroll and employee benefits	42	(3,983)
Income tax payable and receivable	1,716	(1,750)
Accrued and other current liabilities	(221)	(1,397)
Postretirement benefit obligations and other noncurrent liabilities	810	107
Net cash from operating activities	20,497	10,824
Investing activities:
Capital expenditures	(2,868)	(4,021)
Proceeds from sale of property, plant and equipment	78	442
Net cash used in investing activities	(2,790)	(3,579)
Financing activities:
Proceeds from (repayments of) short-term borrowings, net	73	(2,461)
Proceeds from long-term debt including credit facilities	27,769	3,500
Repayments of long-term debt including credit facilities	(26,501)	(9,988)
Principal paid on finance leases	(637)	(611)
Payments of debt issue costs	(3,077)	0
Net cash used in financing activities	(2,373)	(9,560)
Effect of exchange rate changes on cash and cash equivalents	677	80
Net change in cash and cash equivalents	16,011	(2,235)
Cash and cash equivalents-beginning of year	6,433	8,668
Cash and cash equivalents-end of year	$ 22,444	$ 6,433