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SHAREHOLDERS’ EQUITY (Details Narrative) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Oct. 01, 2024
Sep. 16, 2024
Aug. 15, 2024
Apr. 01, 2024
Mar. 12, 2024
Jan. 10, 2024
Apr. 04, 2023
Jan. 10, 2023
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2020
Nov. 01, 2024
Sep. 13, 2024
Dec. 31, 2023
Class of Stock [Line Items]                                        
Dividend paid price per share   $ 0.215                                    
Dividend per share       $ 0.86                                
Share price       0.205                                
Dividends paid   $ 16,000,000.0                                    
Proceed from dividend reinvestment and stock purchase plan (DRIP)                             $ 2,400,000 $ 2,000,000.0        
Common stock par value                 $ 0.10           $ 0.10         $ 0.10
Proceeds from Issuance of Common Stock in the DRIP, net of dividend reinvestments                             $ 5,258,000 $ 4,807,000        
Common stock shares to be authorized                                     10,000,000  
2024 September Common ATM Program [Member]                                        
Class of Stock [Line Items]                                        
Common stock available for sale value                 $ 148,200,000           148,200,000          
Common Stock [Member]                                        
Class of Stock [Line Items]                                        
Shares issued during the period for DRIP                 141,000 172,000 168,000 137,000 151,000 164,000            
Common stock par value                                     $ 0.10  
ATM Program [Member] | Common Stock [Member] | B. Riley FBR, Inc [Member]                                        
Class of Stock [Line Items]                                        
Common stock par value   $ 0.10     $ 0.10   $ 0.10                          
ATM Program [Member] | Common Stock [Member] | B. Riley FBR, Inc [Member] | Maximum [Member]                                        
Class of Stock [Line Items]                                        
Proceeds from Issuance of Common Stock in the DRIP, net of dividend reinvestments   $ 150,000,000     $ 150,000,000   $ 150,000,000                          
DRIP [Member]                                        
Class of Stock [Line Items]                                        
Proceed from dividend reinvestment and stock purchase plan (DRIP)                             $ 7,600,000          
Shares issued during the period for DRIP                             481,000          
6.375% Series D Cumulative Redeemable Preferred Stock [Member]                                        
Class of Stock [Line Items]                                        
Dividends paid   $ 4,800,000                                    
Dividend rate declared   6.375%                                    
Preferred stock par value   $ 0.10                                    
Liquidation preference, per share   25.00                                    
Annual rate of dividend   1.59375                                    
6.375% Series D Cumulative Redeemable Preferred Stock [Member] | Ordinary 2024 Q3 Dividends [Member]                                        
Class of Stock [Line Items]                                        
Dividend paid price per share   $ 0.3984375                                    
Series D Cumulative Redeemable Preferred Stock [Member] | 2023 Preferred ATM Program [Member] | BRiley Securities Inc [Member]                                        
Class of Stock [Line Items]                                        
Preferred stock par value               $ 0.10                        
Liquidation preference, per share               $ 25.00                        
Series D Cumulative Redeemable Preferred Stock [Member] | Maximum [Member] | 2023 Preferred ATM Program [Member] | BRiley Securities Inc [Member]                                        
Class of Stock [Line Items]                                        
Cumulative redeemable preferred stock, percentage               6.375%                        
Series D Preferred Stock [Member]                                        
Class of Stock [Line Items]                                        
Preferred stock par value                 $ 0.10           $ 0.10         $ 0.10
Series D Preferred Stock [Member] | 2023 Preferred ATM Program [Member]                                        
Class of Stock [Line Items]                                        
Preferred stock available for sale value                 $ 30,600,000           $ 30,600,000          
Series D Preferred Stock [Member] | 2023 Preferred ATM Program [Member] | BRiley Securities Inc [Member]                                        
Class of Stock [Line Items]                                        
Sale of stock, number of shares issued in transaction                             664,000          
Sale of stock, price per share                 $ 23.35           $ 23.35          
Net proceeds from sale of equity after offering expenses                             $ 15,300,000          
Series D Preferred Stock [Member] | Maximum [Member] | 2023 Preferred ATM Program [Member] | BRiley Securities Inc [Member]                                        
Class of Stock [Line Items]                                        
Preferred stock available for sale value               $ 100,000,000                        
Subsequent Event [Member] | Common Stock [Member] | Ordinary 2024 Q3 Dividends [Member]                                        
Class of Stock [Line Items]                                        
Dividend payable date Dec. 16, 2024                                      
Divided date of record Nov. 15, 2024                                      
Subsequent Event [Member] | 6.375% Series D Cumulative Redeemable Preferred Stock [Member] | Ordinary 2024 Q3 Dividends [Member]                                        
Class of Stock [Line Items]                                        
Dividend payable date Dec. 16, 2024                                      
Divided date of record Nov. 15, 2024                                      
Dividend paid price per share $ 0.3984375                                      
Stock Purchase Plan [Member]                                        
Class of Stock [Line Items]                                        
Dividend paid price per share       $ 0.01                         $ 0.14      
Percentage of incease in common stock dividend       4.90%                         19.00%      
Dividend per share       $ 0.215                                
Reinvestment of dividend     $ 838,000                       $ 2,400,000          
Stock Purchase Plan [Member] | Subsequent Event [Member]                                        
Class of Stock [Line Items]                                        
Dividend per share $ 0.215                                      
Common Stock Repurchase Program [Member]                                        
Class of Stock [Line Items]                                        
Authorized stock repurchase, value           $ 25,000,000                            
2023 Common ATM Program [Member]                                        
Class of Stock [Line Items]                                        
Sale of stock, number of shares issued in transaction                             8,500,000          
Aggregate sale price                             $ 132,200,000          
2023 Common ATM Program [Member] | 2023 Distribution Agents [Member]                                        
Class of Stock [Line Items]                                        
Sale of stock, number of shares issued in transaction                             1,200,000          
Sale of stock, price per share                 15.37           $ 15.37          
Gross proceeds from sale of equity after offering expenses                             $ 19,100,000          
Net proceeds from sale of equity after offering expenses                             $ 18,900,000          
2024 Common ATM Program [Member] | 2024 Distribution Agents [Member]                                        
Class of Stock [Line Items]                                        
Sale of stock, number of shares issued in transaction                             8,100,000          
Sale of stock, price per share                 17.86           $ 17.86          
Gross proceeds from sale of equity after offering expenses                             $ 145,100,000          
Net proceeds from sale of equity after offering expenses                             $ 142,900,000          
2024 September Common ATM Program [Member] | 2024 Distribution Agents [Member]                                        
Class of Stock [Line Items]                                        
Sale of stock, number of shares issued in transaction                             90,000          
Sale of stock, price per share                 19.71           $ 19.71          
Gross proceeds from sale of equity after offering expenses                             $ 1,800,000          
Net proceeds from sale of equity after offering expenses                             $ 1,400,000          
2024 September Common ATM Program [Member] | Subsequent Event [Member] | Common Stock [Member]                                        
Class of Stock [Line Items]                                        
Sale of stock, number of shares issued in transaction 170,000                                      
Sale of stock, price per share $ 18.92                                      
Gross proceeds from sale of equity after offering expenses $ 3,200,000                                      
Common stock available for sale value                                   $ 145,000,000.0    
2023 Common ATM Program, 2024 March Common ATM Program and 2024 September Common ATM Program [Member]                                        
Class of Stock [Line Items]                                        
Sale of stock, number of shares issued in transaction                             9,400,000          
Sale of stock, price per share                 $ 17.55           $ 17.55          
Gross proceeds from sale of equity after offering expenses                             $ 166,000,000.0          
Net proceeds from sale of equity after offering expenses                             163,200,000          
2023 Preferred ATM Program [Member]                                        
Class of Stock [Line Items]                                        
Gross proceeds from sale of equity after offering expenses                             $ 15,500,000          
2023 Preferred ATM Program [Member] | Subsequent Event [Member] | Series D Preferred Stock [Member]                                        
Class of Stock [Line Items]                                        
Sale of stock, number of shares issued in transaction 247,000                                      
Sale of stock, price per share $ 23.90                                      
Net proceeds from sale of equity after offering expenses $ 5,800,000                                      
Preferred stock available for sale value                                   $ 24,700,000