Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Loss from continuing operations	$ (2,684)	$ (87,228)
Loss from discontinued operations	(242)	(215)
Net loss	(2,926)	(87,443)
Adjustments to reconcile net loss to cash provided by (used in) operating activities
Depreciation and amortization	5,454	5,192
Provision for allowance for doubtful accounts	970	52
Inventory lower-of-cost-or-market/NRV adjustments	1,755	491
Stock-based compensation expense (benefit)	1,429	(356)
Loss on asset dispositions	184	536
Loss on debt extinguishment	230	0
Loss on disposal group, goodwill and other intangible impairment charge	29,013	72,008
Deferred income taxes, net of valuation allowance	(1,494)	(9,372)
Other	(630)	(108)
Changes in operating assets and liabilities:
Trade receivables	12,270	16,755
Inventories	20,451	16,457
Prepaids and other assets	1,323	2,329
Income taxes receivable	(4,855)	2,611
Trade payables	(20,529)	(56,234)
Accrued liabilities and other liabilities, including warranty obligations	3,893	(134)
Net cash provided by (used in) operating activities	46,538	(37,216)
Cash flows from investing activities:
Proceeds from sales and maturities of available-for-sale securities	0	25,271
Purchases of property, plant and equipment	(4,659)	(3,874)
Purchases of other investments in non-controlled affiliates	0	(3,500)
Net cash (used in) provided by investing activities	(4,659)	17,897
Cash flows from financing activities:
Proceeds from long-term debt	44,717	529
Payments on long-term debt	(43,453)	(11,667)
Payments of debt issuance costs	(1,823)	0
Proceeds from employee stock purchases	83	168
Proceeds from exercise of stock options	0	75
Tax payments related to stock award issuances	(44)	(107)
Net cash used in financing activities	(520)	(11,002)
Effect of exchange rate changes on cash and cash equivalents	(591)	117
Increase (decrease) in cash, cash equivalents and restricted cash	40,768	(30,204)
Less: Net change in cash balances classified as assets held-for-sale	(3,986)	0
Net change in cash, cash equivalents and restricted cash	36,782	(30,204)
Cash, cash equivalents and restricted cash:
Cash and cash equivalents at beginning of period	11,070	38,125
Cash, cash equivalents and restricted cash at end of period	47,852	7,921
Supplemental disclosure of cash flow information:
Cash paid for interest	450	677
Cash paid (received) for income taxes, net	490	(2,324)
Supplemental disclosure of non-cash investing activities:
Capital expenditures incurred but not yet paid	652	537
The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the Consolidated Condensed Balance Sheets to the total of the same amounts shown above:
Total cash, cash equivalents and restricted cash	$ 47,852	$ 7,921