Quarterly report [Sections 13 or 15(d)]

INVESTMENT SECURITIES (Investment Portfolio Composition) (Details)

v3.25.3
INVESTMENT SECURITIES (Investment Portfolio Composition) (Details) - USD ($)
Sep. 30, 2025
Dec. 31, 2024
Available-for-sale    
Amortized cost $ 592,323,000 $ 429,033,000
Unrealized Gains 1,669,000 64,000
Unrealized Losses 16,616,000 25,685,000
Allowance for Credit Losses (43,000) (67,000)
Fair Value 577,333,000 403,345,000
Federal Home Loan Bank 3,000,000.0 3,000,000.0
Federal Reserve Bank stock 5,100,000 5,100,000
Held to Maturity    
Amortized Cost 404,659,000 567,155,000
Unrealized Gains 625,000 16,000
Unrealized Losses 11,159,000 22,711,000
Fair Value 394,125,000 544,460,000
U.S. Government Treasury [Member]    
Available-for-sale    
Amortized cost 272,030,000 106,710,000
Unrealized Gains 1,567,000 25,000
Unrealized Losses 283,000 934,000
Allowance for Credit Losses 0 0
Fair Value 273,314,000 105,801,000
Held to Maturity    
Amortized Cost 170,612,000 368,005,000
Unrealized Gains 0 0
Unrealized Losses 1,348,000 6,476,000
Fair Value 169,264,000 361,529,000
U.S. Government Agency [Member]    
Available-for-sale    
Amortized cost 165,774,000 148,666,000
Unrealized Gains 59,000 39,000
Unrealized Losses 3,148,000 5,578,000
Allowance for Credit Losses 0 0
Fair Value 162,685,000 143,127,000
States and Political Subdivisions [Member]    
Available-for-sale    
Amortized cost 37,525,000 43,212,000
Unrealized Gains 42,000 0
Unrealized Losses 2,319,000 3,827,000
Allowance for Credit Losses 0 (3,000)
Fair Value 35,248,000 39,382,000
Mortgage-Backed Securities [Member]    
Available-for-sale    
Amortized cost 61,225,000 66,379,000
Unrealized Gains 1,000 0
Unrealized Losses 8,286,000 10,902,000
Allowance for Credit Losses 0 0
Fair Value 52,940,000 55,477,000
Held to Maturity    
Amortized Cost 234,047,000 199,150,000
Unrealized Gains 625,000 16,000
Unrealized Losses 9,811,000 16,235,000
Fair Value 224,861,000 182,931,000
Corporate Debt Securities [Member]    
Available-for-sale    
Amortized cost 47,672,000 55,970,000
Unrealized Gains 0 0
Unrealized Losses 2,580,000 4,444,000
Allowance for Credit Losses (43,000) (64,000)
Fair Value 45,049,000 51,462,000
Other Securities [Member]    
Available-for-sale    
Amortized cost 8,097,000 8,096,000
Unrealized Gains 0 0
Unrealized Losses 0 0
Allowance for Credit Losses 0 0
Fair Value $ 8,097,000 $ 8,096,000