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LONG-TERM DEBT (Financed Insurance Loan) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020 | Jul. 31, 2020 | Jul. 31, 2019
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Total debt | $ 186 | $ 1,010 |  |
Financed Insurance Loan [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument, face amount |  |  | $ 100 | $ 400
Interest rate (as a percent) |  |  | 5.00% | 5.00%
Total debt | $ 0 | 12 |  |
Minimum [Member] | Financed Insurance Loan [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Total debt |  | $ 100 |  |

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