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Investment Securities (Details 1) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Less than 12 months, fair value $ 199,903,000 $ 224,680,000
Less than 12 months, unrealized losses 16,697,000 4,548,000
12 months or more, fair value 212,326,000 28,817,000
12 months or more, unrealized losses 45,631,000 988,000
Total, fair value 412,229,000 253,497,000
Total, unrealized losses 62,328,000 5,536,000
U.S Treasuries [Member]    
Less than 12 months, fair value 2,878,000 7,889,000
Less than 12 months, unrealized losses 104,000 75,000
12 months or more, fair value 6,936,000 0
12 months or more, unrealized losses 1,033,000 0
Total, fair value 9,814,000 7,889,000
Total, unrealized losses 1,137,000 75,000
Mortgage-backed securities    
Less than 12 months, fair value 128,241,000 131,483,000
Less than 12 months, unrealized losses 8,740,000 2,477,000
12 months or more, fair value 120,464,000 19,632,000
12 months or more, unrealized losses 17,089,000 542,000
Total, fair value 248,705,000 151,115,000
Total, unrealized losses 25,829,000 3,019,000
U.S. Government sponsored enterprises    
Less than 12 months, fair value 2,904,000 5,232,000
Less than 12 months, unrealized losses 87,000 15,000
12 months or more, fair value 8,635,000 3,263,000
12 months or more, unrealized losses 619,000 170,000
Total, fair value 11,539,000 8,495,000
Total, unrealized losses 706,000 185,000
State and political subdivisions    
Less than 12 months, fair value 65,880,000 80,076,000
Less than 12 months, unrealized losses 7,766,000 1,981,000
12 months or more, fair value 76,291,000 5,922,000
12 months or more, unrealized losses 26,890,000 276,000
Total, fair value 142,171,000 85,998,000
Total, unrealized losses $ 34,656,000 $ 2,257,000