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STOCKHOLDERS' EQUITY - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Mar. 08, 2022
Dec. 09, 2021
Sep. 07, 2021
Jun. 07, 2021
Mar. 05, 2021
Dec. 02, 2020
Sep. 02, 2020
Jun. 03, 2020
Mar. 02, 2020
Dec. 31, 2021
Dec. 31, 2020
Jan. 31, 2020
Subsidiary, Sale of Stock [Line Items]                        
Dividends declared, common (in usd per share)   $ 0.075 $ 0.075 $ 0.075 $ 0.075 $ 0.075 $ 0.075 $ 0.075 $ 0.075      
Net proceeds from issuance of warrants                   $ 0 $ 28  
Series A Preferred Warrants                        
Subsidiary, Sale of Stock [Line Items]                        
Warrants outstanding (in shares)                   4,541,852    
Outstanding common stock available for purchase (in shares)                   1,178,125    
Net proceeds from issuance of warrants                   $ 610    
Rights Offering                        
Subsidiary, Sale of Stock [Line Items]                        
Sale of stock, number of shares issued (in shares)                   8,521,589    
Purchase price (in usd per share)                   $ 9.25    
Consideration received on transaction                   $ 78,800    
Reduction to additional paid-in capital, due to offering costs incurred                   $ 1,900    
Registration Statement                        
Subsidiary, Sale of Stock [Line Items]                        
Number of warrants included in preferred stock unit (in shares)                       1
Warrant right to purchase a share of common stock (in shares)                   0.25   0.25
Premium of the exercise price of the warrant as a percent to net asset value of common stock                       15.00%
Registration Statement | Series A Preferred Stock                        
Subsidiary, Sale of Stock [Line Items]                        
Number of shares included in preferred stock unit (in shares)                       1
Subsequent event                        
Subsidiary, Sale of Stock [Line Items]                        
Dividends declared, common (in usd per share) $ 0.085