Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash Flows from Operating Activities:
Net income (loss)	$ 9,600	$ (1,700)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization		800
Stock-based compensation		(200)
Pension settlement and curtailments		100
Gain on sale of assets	(9,600)
Short term investment		400
Other, net	(200)	(300)
Changes in operating assets and liabilities	(2,600)	(900)
Net cash used in operating activities	(2,800)	(1,800)
Cash Flows from Investing Activities:
Capital expenditures		(200)
Disbursement related to disposal group	(500)
Proceeds from sale of assets	1,000
Net cash provided by (used in) investing activities	500	(200)
Cash Flows from Financing Activities:
Net cash provided by financing activities
Net change in cash and cash equivalents	(2,300)	(2,000)
Cash, cash equivalents and restricted cash - beginning of period	5,300	10,700
Cash, cash equivalents and restricted cash - end of period (a)	300	8,700
Supplemental disclosures of cash paid during the period:
Income taxes (net of refunds received)		100
Current assets:
Cash and cash equivalents	3,000	8,100
Restricted cash included in other current assets		200
Non-current assets:
Restricted cash included in non-current assets of discontinued operations		400
Total cash, cash equivalents and restricted cash	$ 3,000	$ 8,700