XML 80 R63.htm IDEA: XBRL DOCUMENT v3.24.1
Note 3 - Investment Securities - Investment Securities Continuous Unrealized Loss Position (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Number of investment positions - less than twelve months, available for sale 80 278
Fair value - less than twelve months, available for sale $ 42,897 $ 181,760
Gross unrealized losses - less than twelve months, available for sale $ 2,447 $ 10,821
Number of investment positions - more than twelve months, available for sale 321 187
Fair value - more than twelve months, available for sale $ 343,185 $ 258,858
Gross unrealized losses - more than twelve months, available for sale $ 29,618 $ 36,023
Number of investment positions, available for sale 401 465
Fair value, available for sale $ 386,082 $ 440,618
Gross unrealized losses, available for sale 32,065 $ 46,844
Number of investment positions - more than twelve months, held to maturity   1
Fair value - more than twelve months, held to maturity 4,446 $ 1,532
Gross unrealized losses - more than twelve months, held to maturity $ 2,554 $ 468
Total securities held to maturity 4 4
Fair value, held to maturity $ 4,446 $ 5,311
Gross unrealized losses, held to maturity $ 2,554 $ 1,689
Corporate notes   3
Fair value - less than twelve months, held to maturity   $ 3,779
Total less than twelve months, accumulated loss   $ 1,221
Agency Collateralized Mortgage Obligations [Member]    
Number of investment positions - less than twelve months, available for sale 3 23
Fair value - less than twelve months, available for sale $ 8,019 $ 6,287
Gross unrealized losses - less than twelve months, available for sale $ 30 $ 336
Number of investment positions - more than twelve months, available for sale 22 3
Fair value - more than twelve months, available for sale $ 4,998 $ 257
Gross unrealized losses - more than twelve months, available for sale $ 293 $ 13
US Government Agencies Debt Securities [Member]    
Number of investment positions - less than twelve months, available for sale 3 15
Fair value - less than twelve months, available for sale $ 2,754 $ 35,079
Gross unrealized losses - less than twelve months, available for sale $ 12 $ 1,314
Number of investment positions - more than twelve months, available for sale 52 45
Fair value - more than twelve months, available for sale $ 123,416 $ 102,902
Gross unrealized losses - more than twelve months, available for sale $ 8,695 $ 11,848
US States and Political Subdivisions Debt Securities [Member]    
Number of investment positions - less than twelve months, available for sale 74 154
Fair value - less than twelve months, available for sale $ 32,124 $ 81,218
Gross unrealized losses - less than twelve months, available for sale $ 2,405 $ 5,960
Number of investment positions - more than twelve months, available for sale   98
Fair value - more than twelve months, available for sale   $ 52,279
Gross unrealized losses - more than twelve months, available for sale   $ 12,266
Mortgage-Backed Securities, Issued by US Government Sponsored Enterprises [Member]    
Number of investment positions - less than twelve months, available for sale   69
Fair value - less than twelve months, available for sale   $ 27,561
Gross unrealized losses - less than twelve months, available for sale   $ 2,214
Number of investment positions - more than twelve months, available for sale 96 28
Fair value - more than twelve months, available for sale $ 72,044 $ 56,303
Gross unrealized losses - more than twelve months, available for sale $ 9,122 $ 8,979
US Treasury and Government [Member]    
Number of investment positions - less than twelve months, available for sale   17
Fair value - less than twelve months, available for sale   $ 31,615
Gross unrealized losses - less than twelve months, available for sale   $ 997
Number of investment positions - more than twelve months, available for sale 21 13
Fair value - more than twelve months, available for sale $ 63,084 $ 47,117
Gross unrealized losses - more than twelve months, available for sale $ 1,674 $ 2,917
Municipal Notes [Member]    
Number of investment positions - more than twelve months, available for sale 130  
Fair value - more than twelve months, available for sale $ 79,643  
Gross unrealized losses - more than twelve months, available for sale $ 9,834  
Corporate Note Securities [Member]    
Number of investment positions - more than twelve months, held to maturity 4 1
Fair value - more than twelve months, held to maturity $ 4,446 $ 1,532
Gross unrealized losses - more than twelve months, held to maturity $ 2,554 $ 468
Corporate notes   3
Fair value - less than twelve months, held to maturity   $ 3,779
Total less than twelve months, accumulated loss   $ 1,221