Debt - Notes Payable (Details) - USD ($)	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Notes payable
Notes designated at Fair Value Option	$ 31,961,000		$ 30,943,000
Total	32,113,000		36,900,000
Less: unamortized discount and debt issuance costs			(1,040,000)
Notes payable, net of discount	32,113,000		35,860,000
Notes payable - non-current, net	21,719,000		30,993,000
Notes payable - current, net	$ 10,394,000		$ 4,867,000
Weighted average interest rate on short-term borrowings	3.24%		5.04%
Cash paid for interest	$ 9,000	$ 6,000
Notes payable
Notes payable
Notes payable - current, net	10,394,000		$ 4,867,000
Royalty Interest
Notes payable
Total			5,635,000
Insurance Financing
Notes payable
Total	52,000		172,000
Tempesta Note
Notes payable
Total	$ 100,000		$ 150,000