Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash Flows from Operating Activities:
Net loss	$ (2,300)	$ (13,200)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	200	100
Loss on sale of investments		200
Defined benefit plan adjustment		8,500
Changes in operating assets and liabilities	1,000	1,500
Net cash used in operating activities	(1,100)	(2,900)
Cash Flows from Investing Activities:
Net cash used in investing activities
Cash Flows from Financing Activities:
Proceeds from Orix note payable		160,000
Net cash provided by financing activities		160,000
Net change in cash and cash equivalents	(1,100)	13,100
Cash, cash equivalents and restricted cash - beginning of period	1,800	5,500
Cash, cash equivalents and restricted cash - end of period	700	18,600
Supplemental disclosures of cash paid (received) during the period:
Income taxes (net of refunds received)	(600)
Interest expense	$ 200