Quarterly report pursuant to Section 13 or 15(d)

SUBSEQUENT EVENTS (Details)

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SUBSEQUENT EVENTS (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 12 Months Ended
Mar. 31, 2023
Feb. 28, 2023
Jan. 31, 2023
Dec. 30, 2022
Nov. 30, 2022
Oct. 31, 2022
Dec. 31, 2021
Nov. 30, 2021
Oct. 29, 2021
Jan. 31, 2023
Mar. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Sep. 30, 2022
Subsequent Event [Line Items]                            
Purchase of investments                       $ 13,379 $ 110,794  
Investment company, committed capital                       $ 67,305   $ 74,846
Common stock dividends paid (in USD per share)       $ 0.07 $ 0.07 $ 0.07 $ 0.065 $ 0.065 $ 0.065     $ 0.21 $ 0.195  
Unused lines of Credit                            
Subsequent Event [Line Items]                            
Investment company, committed capital                       $ 26,064   $ 36,225
Subsequent Event                            
Subsequent Event [Line Items]                            
Common stock dividends paid (in USD per share) $ 0.075 $ 0.075 $ 0.075               $ 0.225      
Subsequent Event | Unused lines of Credit                            
Subsequent Event [Line Items]                            
Investment company, committed capital                   $ 4,500        
Subsequent Event | Investment, Identifier [Axis]: NeoGraf Solutions, LLC | Secured first lien debt                            
Subsequent Event [Line Items]                            
Purchase of investments                   $ 29,000