Annual report pursuant to Section 13 and 15(d)

Note 2 - Securities (Details Textual)

v3.24.0.1
Note 2 - Securities (Details Textual)
 12 Months Ended
Jan. 01, 2022
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Proceeds From Sale Of Securities   $ 0 $ 0
Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions   402 444
Debt Securities, Available-for-Sale, Unrealized Loss Position   $ 454,951,000 $ 464,449,000
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss   $ 29,433,000 $ 40,143,000
Held-to-Maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions   58 76
Debt Securities, Held-to-Maturity, Unrealized Loss Positions, Fair Value   $ 288,895,000 $ 317,022,000
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Losses   9,709,000 16,530,000
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value     317,000,000
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss     16,500,000
Equity Method Investments, Fair Value Disclosure   1,300,000 1,300,000
Asset Pledged as Collateral [Member] | Public Deposits Letters Of Credit And For Other Purposes [Member]      
Debt Securities   3,700,000 3,500,000
US Treasury Securities [Member]      
Debt Securities, Held-to-Maturity, Unrealized Loss Positions, Fair Value   242,709,000 237,630,000
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Losses   $ 8,520,000 $ 13,677,000
Number of Securities Reclassified 10    
Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Amortized Cost $ 123,500,000    
Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Unrealized Gain $ 113,000