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COMMITMENTS AND CONTINGENCIES - Leases (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Operating Leased Assets [Line Items] |  |  |  |
Operating lease, term of contract (in years) | 10 years |  | 10 years |
Rent expense | $ 176 | $ 146 | $ 339 | $ 402
Sublease rental income | $ 55 | $ 91 | $ 110 | $ 182
Minimum |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |
Operating lease, term of contract (in years) | 5 years |  | 5 years |
Sublease, term of contract (in years) |  |  | 3 years |
Maximum |  |  |  |
Operating Leased Assets [Line Items] |  |  |  |
Operating lease, term of contract (in years) | 10 years |  | 10 years |
Sublease, term of contract (in years) |  |  | 11 years |

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- Definition Term of sublease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918673-209980 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123406913&loc=d3e41499-112717 + Details
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- Definition The total amount of sublease rental income recognized during the period that reduces the entity's rent expense incurred under operating leases. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=123403562&loc=d3e38371-112697 + Details
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