v3.26.1
Note 4 - Financing Arrangements - Schedule of Repurchase Agreement (Details)
6 Months Ended
Jun. 30, 2026
USD ($)
Securities Sold under Agreements to Repurchase [Member] | Asset Pledged as Collateral [Member] | Residential Mortgage Loans [Member]  
Principal $ 47,122,776
Fair value $ 44,917,370
Weighted average interest rate 5.86%
Securities Sold under Agreements to Repurchase [Member] | Asset Pledged as Collateral [Member] | Mortgage Loans Unpaid Principal Balance [Member]  
Principal $ 296,084
Fair value 296,084
Repurchase Agreement [Member]  
Principal $ 37,743,759
Weighted average interest rate 5.51%