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STOCKHOLDERS' EQUITY - Narrative (Details)
 3 Months Ended
Jul. 01, 2021
day
$ / shares
shares
Mar. 08, 2021
USD ($)
$ / shares
shares
Feb. 05, 2021
shares
Jul. 19, 2019
USD ($)
$ / shares
shares
Mar. 31, 2022
USD ($)
shares
Mar. 31, 2021
USD ($)
shares
Dec. 31, 2021
Dec. 31, 2020
$ / shares
Jan. 03, 2019
shares
Class of Stock [Line Items]                  
Aggregate purchase price         $ 1,987,900 $ 0      
Cash payment         1,500,000 0      
Shares issued, value   $ 23,000,000     $ 487,900 $ 26,850,021      
Expected life (years) 5 years       2 years 9 months 21 days   3 years 21 days 5 years  
Exercise price (in dollar per share) | $ / shares $ 15.17             $ 1.182  
Warrants exercised for cash (in shares) | shares           0      
Proceeds from warrants exercised for cash         $ 1,485,351      
Warrants outstanding (in shares) | shares         7,747,587        
Number of shares called by warrants (in shares) | shares 142,711                
Consecutive trading days | day 10                
Wedbush | Satisfy Success Fee                  
Class of Stock [Line Items]                  
Expected life (years)       5 years          
Exercise price (in dollar per share) | $ / shares       $ 18.90          
Number of shares called by warrants (in shares) | shares       42,928          
Warrant value       $ 500,000          
Due to related party       1,000,000.0          
Cash payment to related party       $ 500,000          
Sales Agreement                  
Class of Stock [Line Items]                  
Shares issued (in shares) | shares     6,300,000   0 2,820,493      
Shares issued, value           $ 6,300,000      
Common Stock                  
Class of Stock [Line Items]                  
Shares issued (in shares) | shares   16,806,722     1,000,000 19,627,215      
Shares issued, value         $ 100 $ 1,963      
Price per share (in dollar per share) | $ / shares   $ 1.3685              
Warrants exercised for cash (in shares) | shares           1,298,567      
Number of rights per share (in shares) | shares                 1
Maximum                  
Class of Stock [Line Items]                  
Exercise price (in dollar per share) | $ / shares               $ 0.90