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Investment Securities (Details 1) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Less than 12 months, fair value $ 69,059 $ 199,903
Less than 12 months, unrealized losses 3,522 16,697
12 months or more, fair value 320,084 212,326
12 months or more, unrealized losses 53,334 45,631
Total, fair value 389,143 412,229
Total, fair value 389,143 412,229
Total, unrealized losses 56,856 62,328
U.S Treasuries [Member]    
Less than 12 months, fair value 0 2,878
Less than 12 months, unrealized losses 0 104
12 months or more, fair value 9,894 6,936
12 months or more, unrealized losses 1,069 1,033
Total, fair value 9,894 9,814
Total, fair value 9,894 9,814
Total, unrealized losses 1,069 1,137
U.S. Government sponsored enterprises    
Less than 12 months, fair value 0 2,904
Less than 12 months, unrealized losses 0 87
12 months or more, fair value 11,020 8,635
12 months or more, unrealized losses 694 619
Total, fair value 11,020 11,539
Total, fair value 11,020 11,539
Total, unrealized losses 694 706
Mortgage-backed securities    
Less than 12 months, fair value 69,059 128,241
Less than 12 months, unrealized losses 3,522 8,740
12 months or more, fair value 195,720 120,464
12 months or more, unrealized losses 24,958 17,089
Total, fair value 264,779 248,705
Total, fair value 264,779 248,705
Total, unrealized losses 28,480 25,829
State and political subdivisions    
Less than 12 months, fair value 0 65,880
Less than 12 months, unrealized losses 0 7,766
12 months or more, fair value 103,450 76,291
12 months or more, unrealized losses 26,613 26,890
Total, fair value 103,450 142,171
Total, fair value 103,450 142,171
Total, unrealized losses $ 26,613 $ 34,656