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LEASES (Tables) | 12 Months Ended
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Dec. 31, 2021
Leases [Abstract] |
Summary of Lease Cost | The components of lease cost were as follows (in thousands):
| Year ended December 31,
| 2021 |  | 2020 |  | 2019
Finance lease cost: |  |  |  |  |
Amortization of ROU assets | $ | 790 |  |  | $ | 827 |  |  | $ | 820 |
Interest on lease liabilities | 42 |  |  | 39 |  |  | 44 |
Total finance lease cost | 832 |  |  | 866 |  |  | 864 |
Operating lease cost | 821 |  |  | 898 |  |  | 1,462 |
Short-term lease cost | 128 |  |  | 549 |  |  | 358 |
Total lease cost | $ | 1,781 |  |  | $ | 2,313 |  |  | $ | 2,684 |
| Year ended December 31,
| 2021 |  | 2020 |  | 2019
Cash paid for amounts included in the measurement of lease liabilities: |  |  |  |  |
Operating cash flows from operating leases | $ | (880) |  |  | $ | (961) |  |  | $ | (1,509) |
Operating cash flows from finance leases | (42) |  |  | (39) |  |  | (44) |
Financing cash flows from finance leases | (774) |  |  | (808) |  |  | (793) |
ROU assets obtained in exchange for operating lease liabilities | — |  |  | — |  |  | 894 |
ROU assets obtained in exchange for finance lease liabilities | — |  |  | 1,260 |  |  | 316 |
Summary of Supplemental Balance Sheet Information | Other information related to leases is as follows (in thousands):
| As of December 31,
| 2021 |  | 2020
Finance lease ROU asset (included within Lease right-of-use assets) | $ | 1,251 |  |  | $ | 2,041 |
Operating lease ROU asset (included within Lease right-of-use assets) | $ | 951 |  |  | $ | 1,692 |
Weighted-average remaining lease term (in years): |  |  |
Finance leases | 1.58 |  | 2.58
Operating leases | 1.40 |  | 2.31
Weighted-average discount rate: |  |  |
Finance leases | 2.5 | % |  | 2.5 | %
Operating leases | 5.3 | % |  | 5.3 | %
Summary of Operating Lease Maturity | Maturities of lease liabilities as of December 31, 2021 were as follows (in thousands):
| Finance leases |  | Operating leases
For the year ending: |  |  |
2022 | $ | 816 |  |  | $ | 795 |
2023 | 476 |  |  | 333 |
2024 | — |  |  | — |
2025 | — |  |  | — |
2026 | — |  |  | — |
Thereafter | — |  |  | — |
Total lease payments | 1,292 |  |  | 1,128 |
Less: imputed interest | (26) |  |  | (43) |
Less: lease liabilities, current | (793) |  |  | (756) |
Lease liabilities, non-current | $ | 473 |  |  | $ | 329 |
Maturities of lease liabilities as of December 31, 2020 were as follows (in thousands):
| Finance leases |  | Operating leases
For the year ending: |  |  |
2021 | $ | 816 |  |  | $ | 880 |
2022 | 816 |  |  | 795 |
2023 | 476 |  |  | 333 |
2024 | — |  |  | — |
2025 | — |  |  | — |
Thereafter | — |  |  | — |
Total lease payments | 2,108 |  |  | 2,008 |
Less: imputed interest | (68) |  |  | (123) |
Less: lease liabilities, current | (774) |  |  | (801) |
Lease liabilities, non-current | $ | 1,266 |  |  | $ | 1,084 |
Summary of Finance Lease Maturity | Maturities of lease liabilities as of December 31, 2021 were as follows (in thousands):
| Finance leases |  | Operating leases
For the year ending: |  |  |
2022 | $ | 816 |  |  | $ | 795 |
2023 | 476 |  |  | 333 |
2024 | — |  |  | — |
2025 | — |  |  | — |
2026 | — |  |  | — |
Thereafter | — |  |  | — |
Total lease payments | 1,292 |  |  | 1,128 |
Less: imputed interest | (26) |  |  | (43) |
Less: lease liabilities, current | (793) |  |  | (756) |
Lease liabilities, non-current | $ | 473 |  |  | $ | 329 |
Maturities of lease liabilities as of December 31, 2020 were as follows (in thousands):
| Finance leases |  | Operating leases
For the year ending: |  |  |
2021 | $ | 816 |  |  | $ | 880 |
2022 | 816 |  |  | 795 |
2023 | 476 |  |  | 333 |
2024 | — |  |  | — |
2025 | — |  |  | — |
Thereafter | — |  |  | — |
Total lease payments | 2,108 |  |  | 2,008 |
Less: imputed interest | (68) |  |  | (123) |
Less: lease liabilities, current | (774) |  |  | (801) |
Lease liabilities, non-current | $ | 1,266 |  |  | $ | 1,084 |

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- Definition Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 + Details
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- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980 + Details
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