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MARKETABLE SECURITIES - Narrative (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]    
Debt securities,available-for-sale $ 0 $ 0
Permanent impairment loss, debt securities, available for sale 0 0
Proceeds from sale and maturity of marketable securities $ 1,000,000 $ 38,500,000