Leases (Details) - Schedule of Supplemental Balance Sheet Information - USD ($) $ in Thousands		Sep. 30, 2023	Dec. 31, 2022
Operating leases
Operating lease right-of-use assets		$ 66	$ 118
Current portion of operating lease obligations		66	83
Operating lease liabilities, net of current portion			35
Total operating lease liabilities		66	118
Finance leases
Property and equipment, at cost		2,503	2,622
Accumulated depreciation		(2,304)	(2,418)
Property and equipment, net		199	204
Current portion of finance lease obligations		35	95
Finance lease liabilities, net of current portion		24	46
Total finance lease liabilities		$ 59	$ 141
Weighted Average Remaining Lease Term
Operating leases		1 year	1 year 9 months 18 days
Finance leases		1 year 4 months 24 days	1 year 6 months
Weighted Average Discount Rate:
Operating leases	[1]	5.00%	5.00%
Finance leases		3.00%	2.00%

[1] Upon adoption of the new lease standard, discount rates used for existing leases were established at January 1, 2019