Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' DEFICIT (Details 3)

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STOCKHOLDERS' DEFICIT (Details 3) - Convertible Promissory Note [Member] - Liability Instrument - Warrants [Member] - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Class Of Warrant Or Right [Line Items]    
Balance, beginning of period $ 988  
Fair value at issuance date   $ 1,425
Change in fair value included in the statement of comprehensive (income) loss 475 (437)
Balance, end of period $ 1,463 $ 988