v3.26.1
Note 3 - Investments and Restricted Investments - Summaries of the Amortized Cost, Unrealized Gains, Unrealized Losses, and Fair Value by Investment Type (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Securities available-for-sale, amortized cost $ 0 $ 0
Securities available-for-sale, gross unrealized gain 0 0
Securities available-for-sale, gross unrealized gain 0 0
Securities available-for-sale, estimated fair value 0 0
Securities held-to-maturity, amortized cost 42,863 11,453
Securities held-to-maturity, gross unrealized gain 188 55
Securities held-to-maturity, gross unrealized gain (387) 0
Securities held-to-maturity, estimated fair value 42,664 11,508
US Treasury Securities [Member]    
Securities available-for-sale, amortized cost 0 0
Securities available-for-sale, gross unrealized gain 0 0
Securities available-for-sale, gross unrealized gain 0 0
Securities available-for-sale, estimated fair value 0 0
Securities held-to-maturity, amortized cost 42,863 11,453
Securities held-to-maturity, gross unrealized gain 188 55
Securities held-to-maturity, gross unrealized gain (387) 0
Securities held-to-maturity, estimated fair value $ 42,664 $ 11,508