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Leases - Supplemental Balance Sheet Information (Details) - USD ($) | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Operating leases |  |
Operating lease right-of-use assets | $ 4,435,000 | $ 5,494,000
Operating lease liabilities - current | 961,000 | 1,109,000
Operating lease liabilities - long-term | 3,942,000 | 4,899,000
Total operating lease liabilities | 4,903,000 | 6,008,000
Finance leases |  |
Property and equipment, at cost | 8,663,000 | 8,663,000
Accumulated depreciation | (6,293,000) | (4,624,000)
Property and equipment, net | $ 2,370,000 | $ 4,039,000
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] | Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization | Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization
Finance lease liabilities - current | $ 37,000 | $ 54,000
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] | Long-term Debt and Capital Lease Obligations, Current | Long-term Debt and Capital Lease Obligations, Current
Finance lease liabilities - long-term | $ 8,000 | $ 44,000
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Long-term Debt and Capital Lease Obligations | Long-term Debt and Capital Lease Obligations
Total finance lease liabilities | $ 45,000 | $ 98,000
Weighted average remaining lease term: |  |
Operating leases | 4 years 9 months 18 days | 5 years 7 months 6 days
Finance leases | 9 months 18 days | 1 year 7 months 6 days
Weighted average discount rate: |  |
Operating leases | 5.04% | 5.04%
Finance leases | 5.04% | 5.00%

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