Debt - Insurance Premium Financing (Details) - USD ($)	1 Months Ended				12 Months Ended
	May 31, 2023	Mar. 31, 2023	May 31, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
March 2023 First Insurance Financing
Short-term Debt [Line Items]
Principal amount		$ 98,000
Unpaid balance		$ 115,000
Interest rate (as a percent)		8.60%
Finance charge		$ 2,000
Interest expense					$ 33,000
Debt term		10 months
Financing balance					0
May 2023 First Insurance Financing
Short-term Debt [Line Items]
Principal amount	$ 575,000
Unpaid balance	$ 676,000
Interest rate (as a percent)	8.60%
Finance charge	$ 23,000
Interest expense					16,000
Debt term	10 months
Financing balance					172,000
March 2022 First Insurance Financing
Short-term Debt [Line Items]
Principal amount				$ 100,000
Unpaid balance				$ 115,000
Interest rate (as a percent)				4.60%
Finance charge				$ 15,000
Interest expense					0	$ 0
Debt term				10 months
Financing balance					0	9,000
May 2022 First Insurance Financing
Short-term Debt [Line Items]
Principal amount			$ 752,000
Unpaid balance			$ 941,000
Interest rate (as a percent)			4.30%
Finance charge			$ 15,000
Interest expense					0	0
Debt term			10 months
Financing balance					$ 0	$ 226,000