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CASH AND CASH EQUIVALENTS
12 Months Ended
Dec. 31, 2020
Cash and cash equivalents [abstract]  
CASH AND CASH EQUIVALENTS CASH AND CASH EQUIVALENTS
  December 31, 2020 December 31, 2019
Cash $ 427,530  $ 164,470 
Short-term investments 433,107  339,177 
  $ 860,637  $ 503,647