v3.26.1
Note 4 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Details) - Fair Value, Inputs, Level 3 [Member] - Fair Value, Recurring [Member] - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2026
Corporate Debt Securities [Member]    
Fair value, beginning of period $ 155,600 $ 155,600
Principal payment 0 0
Acquisition 0 0
Investment related gains (losses), net 0 0
Fair value, end of period 155,600 155,600
Collateralized Mortgage-Backed Securities [Member]    
Fair value, beginning of period 328,750 333,750
Principal payment 0 0
Acquisition 0 0
Investment related gains (losses), net 0 (5,000)
Fair value, end of period 328,750 328,750
Term Loans [Member]    
Fair value, beginning of period 12,093,385 11,005,804
Principal payment (729,956) (1,284,627)
Acquisition 1,886,461 3,473,634
Investment related gains (losses), net (281,802) (226,723)
Fair value, end of period 12,968,088 12,968,088
Other Invested Assets [Member]    
Fair value, beginning of period 1,012,127 1,018,640
Principal payment 0 (15)
Acquisition 35,277 68,828
Investment related gains (losses), net (57,890) (97,939)
Fair value, end of period 989,514 989,514
Limited Partnership Interests [Member]    
Fair value, beginning of period 1,711,176 1,293,005
Principal payment 0 (192,000)
Acquisition 0 481,998
Investment related gains (losses), net 91,919 220,092
Fair value, end of period $ 1,803,095 $ 1,803,095