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Leases (Details) - Schedule of supplemental balance sheet information - USD ($) $ in Thousands		Dec. 31, 2021	Dec. 31, 2020
Operating leases
Operating lease right-of-use assets		$ 584	$ 919
Current portion of operating lease obligations		425	504
Operating lease liabilities, net of current portion		117	377
Total operating lease liabilities		542	881
Finance leases
Property and equipment, at cost		3,463	3,806
Accumulated depreciation		(3,199)	(2,941)
Property and equipment, net		264	865
Current portion of finance lease obligations		258	769
Finance lease liabilities, net of current portion		65	95
Total finance lease liabilities		$ 323	$ 864
Weighted-Average Remaining Lease Term
Operating leases		1 year 7 months 6 days
Finance leases		1 year
Weighted-Average Discount Rate
Operating leases	[1]	5.00%
Finance leases		2.00%
[1] Upon adoption of the new lease standard, discount rates used for existing leases were established at January 1, 2019.

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