SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Intangible Assets (Details) - USD ($) |
12 Months Ended | |
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Dec. 31, 2021 |
Dec. 31, 2020 |
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| Finite-Lived Intangible Assets [Line Items] | ||
| Impairment of intangible assets | $ 0 | $ 0 |
| Minimum | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Useful lives | 5 years | |
| Maximum | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Useful lives | 10 years | |
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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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. No definition available.
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- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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