v3.26.3
Note 11 - Subsequent Events (Details Textual)
 2 Months Ended 9 Months Ended
Nov. 30, 2026
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2025
USD ($)
Oct. 31, 2026
USD ($)
Oct. 26, 2026
$ / shares
Dec. 31, 2025
USD ($)
Payments to Acquire Loans Receivable $ 45,921,671 $ 59,179,586 $ (0)      
Proceeds from in Securities Sold under Agreements to Repurchase 20,813,819 35,626,762 0      
Payments for in Securities Sold under Agreements to Repurchase   1,324,386 $ (0)      
Derivative Liability   0       $ 0
Derivative Asset   0       $ 0
Interest Rate Contract [Member]            
Derivative Liability   $ 0        
Derivative, Number of Instruments Held   8        
Derivative Asset [1]   $ 2,968,714        
Interest Rate Contract [Member] | Short [Member]            
Credit Derivative, Maximum Exposure, Undiscounted   81,230,041        
Interest Rate Contract [Member] | Long [Member]            
Credit Derivative, Maximum Exposure, Undiscounted   $ 0        
Subsequent Event [Member]            
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares         $ 0.166667  
Payments for in Securities Sold under Agreements to Repurchase $ 17,168,105          
Debt Instrument, Face Amount       $ 1,000,000    
Subsequent Event [Member] | Interest Rate Contract [Member]            
Derivative, Number of Instruments Acquired       6    
Derivative Liability       $ 237,002    
Subsequent Event [Member] | Interest Rate Contract [Member] | Short [Member]            
Credit Derivative, Maximum Exposure, Undiscounted       $ 43,175,000    
Subsequent Event [Member] | Treasury Lock [Member]            
Derivative, Number of Instruments Acquired 416          
Derivative, Number of Instruments Exited 81          
Derivative, Number of Instruments Held 335          
Derivative Asset $ 648,835          
Gain (Loss) on Sale of Derivatives (105,266)          
Subsequent Event [Member] | Treasury Lock [Member] | Short [Member]            
Credit Derivative, Maximum Exposure, Undiscounted 27,800,000          
Subsequent Event [Member] | Treasury Lock [Member] | Long [Member]            
Credit Derivative, Maximum Exposure, Undiscounted $ 12,100,000          
[1] Amounts related to the interest rate futures held by the Company are recorded at fair value and included in other assets in the accompanying consolidated balance sheets.