UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net income (loss) including noncontrolling interests in subsidiaries	$ 68,930	$ (110,939)
Adjustments to reconcile net income (loss) including noncontrolling interests in subsidiaries to net cash used in operating activities:
Depreciation, depletion and amortization	14,728	13,514
Amortization of debt discount and issuance costs	0	90
Change in fair value of Series A redeemable convertible preferred stock embedded derivatives	(3,954)	(1,613)
Change in fair value of Series A warrants	0	(1,895)
Change in fair value of Series B warrants	(2,762)	(11,598)
Loss on exercise of Series A warrants	0	2,004
Gain on exercise of Series B warrants	(1,525)	0
Compensation expense for share-based awards	3,297	3,820
(Gain) loss on foreign currency exchange	(53)	3,324
Change in fair value of equity securities	(31,423)	263,695
Loss (gain) on sale of equity securities	10,930	(125,318)
Earnings on equity investment in joint venture	(4,167)	(42,531)
Unrealized gain on derivatives	(781)	0
Deferred income taxes	(3,657)	(17,810)
Changes in assets and liabilities:
Accounts receivable	(70,313)	998
Inventories	3,301	(5,291)
Prepaid expenses and other assets	(820)	(5,986)
Accounts payable and accrued expenses	(4,651)	(136)
Royalties and contingent legal fees payable	751	(1,764)
Deferred revenue	(337)	100
Net cash used in operating activities	(22,506)	(37,336)
Cash flows from investing activities:
Acquisition, net of cash acquired (Note 3)	(9,409)	0
Cash reinvested	9,965	0
Patent acquisition	(6,000)	(5,000)
Purchases of equity securities	(13,072)	(112,142)
Sales of equity securities	32,106	273,934
Distributions received from equity investment in joint venture	2,777	28,404
Purchases of property and equipment	(189)	(732)
Net cash provided by investing activities	16,178	184,464
Cash flows from financing activities:
Repurchase of common stock	0	(50,988)
Paydown of Revolving Credit Facility	(7,700)	0
Paydown of Senior Secured Notes	(60,000)	(120,000)
Dividend on Series A Redeemable Convertible Preferred Stock	(1,400)	(2,799)
Taxes paid related to net share settlement of share-based awards	(614)	(1,600)
Proceeds from exercise of stock options	235	0
Net cash provided by (used in) financing activities	58,632	(166,137)
Effect of exchange rates on cash and cash equivalents	1	(2,566)
Increase (decrease) in cash and cash equivalents	52,305	(21,575)
Cash and cash equivalents, beginning	287,786	309,361
Cash and cash equivalents, ending	340,091	287,786
Supplemental schedule of cash flow information:
Interest paid	2,513	7,229
Income taxes paid	831	384
Noncash investing and financing activities:
Accrued patent costs	4,000	9,000
Distribution to noncontrolling interests in subsidiaries	1,390	14,126
Series A warrants
Cash flows from financing activities:
Proceeds from Warrant Exercises	0	9,250
Series B
Cash flows from financing activities:
Proceeds from Warrant Exercises	49,000	0
Rights Offering
Cash flows from financing activities:
Proceeds from Warrant Exercises	$ 79,111	$ 0