v3.26.1
Note 14 - Fair Value Measurements and Fair Value of Financial Instruments - Financial Assets Measured on a Non-recurring Basis (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Total Losses $ 0 $ 0 $ 971 $ 12,491 $ 10,959 $ 9,909
Fair Value, Nonrecurring [Member]            
Total at Fair Value 54,828   54,828   63,582  
Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 54,828   54,828   63,582  
Impaired Loans [Member]            
Total Losses 0 0 971 12,491 10,957 9,762
Impaired Loans [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 17,464   17,464   29,603  
Impaired Loans [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Impaired Loans [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 17,464   17,464   29,603  
Impaired Loans [Member] | Commercial Portfolio Segment [Member]            
Total Losses 0 0 0 8,652 6,395 5,654
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 24   24   1,030  
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Impaired Loans [Member] | Commercial Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 24   24   1,030  
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member]            
Total Losses 0 0 971 3,839 4,562 4,049
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 17,235   17,235   28,356  
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Impaired Loans [Member] | Commercial Real Estate Portfolio Segment [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 17,235   17,235   28,356  
Impaired Loans [Member] | Residential Mortgage and Equity Lines [Member]            
Total Losses 0 0 0 0 0 59
Impaired Loans [Member] | Residential Mortgage and Equity Lines [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 205   205   217  
Impaired Loans [Member] | Residential Mortgage and Equity Lines [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Impaired Loans [Member] | Residential Mortgage and Equity Lines [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Impaired Loans [Member] | Residential Mortgage and Equity Lines [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 205   205   217  
Other Real Estate Owned [Member]            
Total Losses 0 [1] 0 [1] 0 [1] 0 [1] 0 [2] 0 [2]
Other Real Estate Owned [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 35,741 [1]   35,741 [1]   32,356 [2]  
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0 [1]   0 [1]   0 [2]  
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0 [1]   0 [1]   0 [2]  
Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 35,741 [1]   35,741 [1]   32,356 [2]  
Other Equity Securities [Member]            
Total Losses 0 0 0 0 0 0
Other Equity Securities [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 1,539   1,539   1,539  
Other Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Other Equity Securities [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Other Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 1,539   1,539   1,539  
Investments in Venture Capital [Member]            
Total Losses 0 $ 0 0 $ 0 2 $ 147
Investments in Venture Capital [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 84   84   84  
Investments in Venture Capital [Member] | Fair Value, Inputs, Level 1 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Investments in Venture Capital [Member] | Fair Value, Inputs, Level 2 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value 0   0   0  
Investments in Venture Capital [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]            
Total at Fair Value $ 84   $ 84   $ 84  
[1] Other real estate owned balance of $33.0 million in the Consolidated Balance Sheets is net of estimated disposal costs.
[2] Other real estate owned balance of $23.1 million in the Consolidated Balance Sheets is net of estimated disposal costs.