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STOCKHOLDERS' EQUITY (Common Stock, 2018 Purchase Agreement and LP Purchase Agreement) (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 21, 2023
Sep. 30, 2023
$ / shares
shares
Sep. 30, 2022
USD ($)
shares
Sep. 30, 2023
USD ($)
$ / shares
shares
Sep. 30, 2022
USD ($)
shares
Dec. 31, 2022
shares
Dec. 20, 2018
shares
Dec. 19, 2018
shares
Class of Stock [Line Items]                
Common stock, shares authorized (in shares)   150,000,000   150,000,000   150,000,000 250,000,000 150,000,000
Proceeds from exercise of warrants | $         $ 11      
Reverse stock split 0.05              
Shares issued (in shares)   1,380,555   1,380,555   1,141,013    
Common stock, shares outstanding (in shares)   1,380,555   1,380,555   1,141,013    
Issuance of common stock, net of issuance costs | $       $ 2,245 $ 129      
Common Stock [Member]                
Class of Stock [Line Items]                
Proceeds upon issuance of common stock from exercise of warrants (in shares) [1]     1,327   1,340      
Shares issued (in shares) [1]       30,852 4,251      
Restricted shares issued (in shares) [1]   2,492   2,492        
Common Stock [Member]                
Class of Stock [Line Items]                
Proceeds upon issuance of common stock from exercise of warrants (in shares)   0 1,327 0 1,340      
Warrant exercises in period     1,327   1,340      
Preferred Class B                
Class of Stock [Line Items]                
Conversion price (in dollars per share) | $ / shares   $ 8.00   $ 8.00        
Maximum [Member] | Common Stock [Member]                
Class of Stock [Line Items]                
Proceeds from exercise of warrants | $     $ 11   $ 11      
[1] The common stock and additional paid-in capital for all periods presented reflect the one-for-twenty reverse stock split, which was effected on September 21, 2023.