Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 3,690	$ (1,858)
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities:
Deferred income taxes	(166)	(1,258)
Depreciation	2,772	2,944
Amortization	1,712	1,785
Equity in (gain) loss of nonconsolidated investments	(21)	3
Loss on sales and disposals of property, plant, and equipment	0	3
Stock-based compensation	855	1,082
Change in operating assets and liabilities:
Accounts receivable	(13,166)	10
Inventories	(17,463)	(3,046)
Other current assets	(1,961)	(2,775)
Prepaid income tax	(108)	(277)
Other noncurrent assets	591	230
Accounts payable	12,653	10,759
Deferred revenue	7,542	82
Accrued payroll and employee benefits	(5,438)	(5,615)
Accrued settlement	(2,000)	0
Other current liabilities	(2,305)	576
Other long-term liabilities	(733)	(54)
Net cash (used in) provided by operating activities	(13,546)	2,591
CASH FLOWS FROM INVESTING ACTIVITIES:
Proceeds from the sale of property, plant, and equipment	59	9
Capital expenditures on property, plant, and equipment	(2,572)	(723)
Net cash used in investing activities	(2,513)	(714)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of debt	(43,414)	(60,639)
Proceeds from debt	58,614	33,076
Treasury stock acquisitions	(526)	(310)
Net cash provided by (used in) financing activities	14,674	(27,873)
Effect of exchange rate changes on cash and cash equivalents	142	(698)
Net decrease in cash and cash equivalents	(1,243)	(26,694)
Cash and cash equivalents at beginning of period	10,282	37,678
Cash and cash equivalents at end of period	9,039	10,984
Supplemental disclosure of cash flow information:
Interest paid	1,179	964
Income taxes paid	$ 904	$ 994