Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Condensed Consolidated Statements of Operations
Net sales		$ 2,151	$ 0	$ 2,340
Cost of sales		60,739	0	91,550
Operating (income) expense
Selling, general and administrative expenses	$ 1,482	57,688	6,725	72,375
Research and development expenses		12,303		26,728
Legal settlement and litigation charges (benefit), net	(2,015)		(2,559)
Reorganization items			4,785
Impairment of property plant & equipment and intangibles		25,041		139,481
Total operating (income) expense, net	(533)	95,032	8,951	238,584
Income (loss) from operations	533	(153,620)	(8,951)	(327,794)
Other income (expense)
Loss on sale of assets		(2,609)		(2,609)
Other (expense) income	(65)	93	(163)	157
Investment and interest income	1,010	1,645	2,119	4,036
Income (loss) before income taxes	1,478	(154,491)	(6,995)	(326,210)
Net income (loss)	1,478	(154,491)	(6,995)	(326,210)
Less accrued preferred stock dividend	668	(618)	1,323	(1,223)
Net income (loss) attributable to common shareholders	$ 810	$ (153,873)	$ (8,318)	$ (324,987)
Net income (loss) per share attributable to common shareholders
Basic (in dollars per share)	$ 0.05	$ (9.69)	$ (0.52)	$ (20.39)
Diluted (in dollars per share)	$ 0.05	$ (9.69)	$ (0.52)	$ (20.39)
Weighted-average number of common shares outstanding
Basic (in shares)	16,096	15,940	16,014	15,936
Diluted (in shares)	17,537	15,940	16,014	15,936