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STOCKHOLDER RIGHTS PLAN (Details) - $ / shares
Oct. 15, 2018
Dec. 31, 2021
Dec. 31, 2020
Class of Stock [Line Items]      
Rights 1    
Number of securities called by each warrant or right 0.01    
Purchase price   $ 0.001 $ 0.001
Warrants and Rights, Preferred Stock to Common Stock Conversion, Treatment 1    
Number of days after public announcement of acquiring person 10 days    
Number of days after tender or exchange offer is completed by acquiring person 10 days    
Warrants and Rights, Option to Exercise, Market Value Multiplier of Purchase Price 2    
Redemption price per share $ 0.001    
Series B Preferred Stock      
Class of Stock [Line Items]      
Number of securities called by each warrant or right 0.01    
Purchase price $ 3.50    
Minimum      
Class of Stock [Line Items]      
Ownership percentage, common stock, without approval of board 4.99%