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Leases (Details) - Schedule of supplemental balance sheet information - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021 | Mar. 31, 2021
--- | --- | --- | ---
Operating leases |  |  |  |
Operating lease right-of-use assets |  | $ 450 | $ 584 |
Current portion of operating lease obligations |  | 245 | 425 |
Operating lease liabilities, net of current portion |  | 95 | 117 |
Total operating lease liabilities |  | 340 | 542 |
Finance leases |  |  |  |
Property and equipment, at cost |  | 2,707 | 3,463 |
Accumulated depreciation |  | (2,472) | (3,199) |
Property and equipment, net |  | 235 | 264 |
Current portion of finance lease obligations |  | 150 | 258 |
Finance lease liabilities, net of current portion |  | 101 | 65 |
Total finance lease liabilities |  | $ 251 | $ 323 |
Weighted Average Remaining Lease Term |  |  |  |
Operating leases |  | 1 year 6 months |  | 1 year 6 months
Finance leases |  | 2 years |  | 10 months 24 days
Weighted Average Discount Rate: |  |  |  |
Operating leases | [1] | 5.00% |  | 5.00%
Finance leases |  | 2.00% |  | 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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