Annual report pursuant to Section 13 and 15(d)

SHAREHOLDERS' EQUITY - Warrants (Details)

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SHAREHOLDERS' EQUITY - Warrants (Details) - shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2020
Class of Warrant or Right [Line Items]      
Number of warrants outstanding 197,000 206,000 183,250
Debenture, warrants issued 13,750    
Centurion debenture      
Class of Warrant or Right [Line Items]      
Number of warrants outstanding 13,500    
Warrants issued      
Class of Warrant or Right [Line Items]      
Number of warrants outstanding   9,000  
Roth Capital      
Class of Warrant or Right [Line Items]      
Number of warrants outstanding   9,000