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Note 6 - Investments and Equity Securities - Amortized Cost and Fair Value of Debt Securities by Contractual Maturity (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Due in one year or less, amortized costs $ 3  
Due in one year or less, fair value 3  
Due after one year through five years, amortized costs 6,009  
Due after one year through five years, fair value 5,826  
Due after five years through ten years, amortized costs 54,200  
Due after five years through ten years, fair value 50,786  
Due after ten years, amortized costs 130,855  
Due after ten years, fair value 109,809  
Amortized costs 191,067 [1] $ 191,146 [2]
Fair Value $ 166,424 $ 170,779
[1] Amortized cost excludes accrued interest receivable of $1.7 million for the period ending June 30, 2024.
[2] Amortized cost excludes accrued interest receivable of $1.7 million for the period ending December 31, 2023.