SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Long-term Assets (Details) - USD ($) $ in Thousands |
12 Months Ended | |
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Dec. 31, 2020 |
Dec. 31, 2019 |
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| Long-term Assets [Abstract] | ||
| Impairment of long term assets | $ 0 | $ 0 |
| X | ||||||||||
- Definition The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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