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Securities & Allowance for Securities Credit Losses - Schedule of Amortized Cost and Fair Value (Details) - USD ($) | Jun. 30, 2025 | Mar. 31, 2025 | Dec. 31, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023
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Securities available for sale: |  |  |  |  |  |  |
Amortized Cost | $ 473,672,000 |  | $ 365,323,000 |  |  |  |
Gross Unrealized Gains | 502,000 |  | 87,000 |  |  |  |
Gross Unrealized (Losses) | (4,882,000) |  | (7,081,000) |  |  |  |
Fair Value | 469,292,000 |  | 358,329,000 | [1] |  |  |
Allowance for Credit Losses | 0 |  | 0 |  | $ 0 |  | $ 0
Securities held to maturity: |  |  |  |  |  |  |
Amortized Cost | 289,349,000 |  | 300,653,000 |  |  |  |
Gross Unrealized Gains | 63,000 |  | 48,000 |  |  |  |
Gross Unrealized (Losses) | (15,346,000) |  | (21,750,000) |  |  |  |
Fair Value | 274,066,000 |  | 278,951,000 |  |  |  |
Allowance for Credit Losses | (144,000) | $ (175,000) | (202,000) |  | (248,000) | $ (359,000) | (348,000)
Total securities, Amortized Cost | 763,021,000 |  | 665,976,000 |  |  |  |
Total securities, Accumulated Unrecognized Gain | 565,000 |  | 135,000 |  |  |  |
Total securities, Accumulated Unrecognized Loss | (20,228,000) |  | (28,831,000) |  |  |  |
Total securities, Fair Value | 743,358,000 |  | 637,280,000 |  |  |  |
Total securities, Allowance for Credit Losses | (144,000) |  | (202,000) |  |  |  |
U.S. government and federal agencies |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |
Amortized Cost | 317,522,000 |  | 207,935,000 |  |  |  |
Gross Unrealized Gains | 291,000 |  | 29,000 |  |  |  |
Gross Unrealized (Losses) | (1,160,000) |  | (1,561,000) |  |  |  |
Fair Value | 316,653,000 |  | 206,403,000 |  |  |  |
Allowance for Credit Losses | 0 |  | 0 |  | 0 |  | 0
Securities held to maturity: |  |  |  |  |  |  |
Amortized Cost | 117,457,000 |  | 122,452,000 |  |  |  |
Gross Unrealized Gains | 0 |  | 0 |  |  |  |
Gross Unrealized (Losses) | (6,368,000) |  | (9,181,000) |  |  |  |
Fair Value | 111,089,000 |  | 113,271,000 |  |  |  |
Allowance for Credit Losses | 0 | 0 | 0 |  | 0 | 0 | 0
Mortgage backed securities |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |
Amortized Cost | 6,814,000 |  | 7,976,000 |  |  |  |
Gross Unrealized Gains | 1,000 |  | 1,000 |  |  |  |
Gross Unrealized (Losses) | (447,000) |  | (582,000) |  |  |  |
Fair Value | 6,368,000 |  | 7,395,000 |  |  |  |
Allowance for Credit Losses | 0 |  | 0 |  |  |  |
Securities held to maturity: |  |  |  |  |  |  |
Amortized Cost | 1,159,000 |  | 1,168,000 |  |  |  |
Gross Unrealized Gains | 0 |  | 0 |  |  |  |
Gross Unrealized (Losses) | (26,000) |  | (51,000) |  |  |  |
Fair Value | 1,133,000 |  | 1,117,000 |  |  |  |
Allowance for Credit Losses | 0 |  | 0 |  |  |  |
Corporate bonds |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |
Amortized Cost | 49,467,000 |  | 44,707,000 |  |  |  |
Gross Unrealized Gains | 147,000 |  | 20,000 |  |  |  |
Gross Unrealized (Losses) | (344,000) |  | (753,000) |  |  |  |
Fair Value | 49,270,000 |  | 43,974,000 |  |  |  |
Allowance for Credit Losses | 0 |  | 0 |  | 0 |  | 0
Securities held to maturity: |  |  |  |  |  |  |
Amortized Cost | 52,856,000 |  | 57,470,000 |  |  |  |
Gross Unrealized Gains | 58,000 |  | 43,000 |  |  |  |
Gross Unrealized (Losses) | (946,000) |  | (1,698,000) |  |  |  |
Fair Value | 51,968,000 |  | 55,815,000 |  |  |  |
Allowance for Credit Losses | (114,000) | (145,000) | (171,000) |  | (215,000) | (325,000) | (322,000)
State and municipal securities |  |  |  |  |  |  |
Securities available for sale: |  |  |  |  |  |  |
Amortized Cost | 99,869,000 |  | 104,705,000 |  |  |  |
Gross Unrealized Gains | 63,000 |  | 37,000 |  |  |  |
Gross Unrealized (Losses) | (2,931,000) |  | (4,185,000) |  |  |  |
Fair Value | 97,001,000 |  | 100,557,000 |  |  |  |
Allowance for Credit Losses | 0 |  | 0 |  | 0 |  | 0
Securities held to maturity: |  |  |  |  |  |  |
Amortized Cost | 117,877,000 |  | 119,563,000 |  |  |  |
Gross Unrealized Gains | 5,000 |  | 5,000 |  |  |  |
Gross Unrealized (Losses) | (8,006,000) |  | (10,820,000) |  |  |  |
Fair Value | 109,876,000 |  | 108,748,000 |  |  |  |
Allowance for Credit Losses | $ (30,000) | $ (30,000) | $ (31,000) |  | $ (33,000) | $ (34,000) | $ (26,000)
[1] | Derived from audited consolidated financial statements.

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