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Leases (Details) - Schedule of supplemental balance sheet information related to lease - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Operating leases |  |  |
Operating lease right-of-use assets |  | $ 488 | $ 919
Current portion of operating lease obligations |  | 314 | 504
Operating lease liabilities, net of current portion |  | 36 | 377
Total operating lease liabilities |  | 350 | 881
Finance leases |  |  |
Property and equipment, at cost |  | 3,569 | 3,806
Accumulated depreciation |  | (3,193) | (2,941)
Property and equipment, net |  | 376 | 865
Current portion of finance lease obligations |  | 369 | 769
Finance lease liabilities, net of current portion |  | 28 | 95
Total finance lease liabilities |  | $ 397 | $ 864
Weighted Average Remaining Lease Term |  |  |
Operating leases |  | 1 year 2 months 12 days | 1 year 7 months 6 days
Finance leases |  | 4 months 24 days | 9 months 18 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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