Leases (Details) - Schedule of supplemental balance sheet information - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020
Operating leases
Operating lease right-of-use assets	$ 743	$ 919
Current portion of operating lease obligations	377	504
Operating lease liabilities, net of current portion	251	377
Total operating lease liabilities	628	881
Finance leases
Property and equipment, at cost	3,589	3,806
Accumulated depreciation	(2,937)	(2,941)
Property and equipment, net	652	865
Current portion of finance lease obligations	624	769
Finance lease liabilities, net of current portion	48	95
Total finance lease liabilities	$ 672	$ 864
Weighted Average Remaining Lease Term
Operating leases	1 year 6 months		1 year
Finance leases	328 days		1 year 146 days
Weighted Average Discount Rate:
Operating leases	5.00%		5.00%
Finance leases	2.00%		2.00%

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Amount of finance lease obligation due within one year or the normal operating cycle, if longer.

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Property and equipment, net.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

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Amount of operating lease obligation due within one year or the normal operating cycle, if longer.

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Cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land or leased assets).

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of lessee's right to use underlying asset under operating lease.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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