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ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Narrative) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES [Abstract] |  |
Reduction in Certain Accrued Expense and Accounts Payable | $ 0.1 | $ 1.4

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