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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

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