STANDBY EQUITY PURCHASE AGREEMENT AND CONVERTIBLE PROMISSORY NOTE - Derivative liability (Details) - USD ($)		12 Months Ended
	Jun. 10, 2022	Dec. 31, 2022
Derivative liability
Principal payments		$ 15,306,000
Convertible promissory note
Derivative liability
Debt discount and debt issuance costs	$ 404,000
Original issue discount	300,000
Issuance costs	$ 104,000
Amortization period of debt costs and discount over term of debt	6 months
Effective interest rate of debt	7.50%
Amortization of debt issuance costs		396,000
Contractual interest expense		1,100,000
Principal payments		15,300,000
Principal reduction		$ 168,000