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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Narrative Disclosures) (Details) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2023 USD ($) days loans | Dec. 31, 2022 USD ($) loans | Jan. 01, 2023 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Financing Receivable, Credit Quality Indicator |  |  |  |  |
Guaranteed Portion of SBA Loans Sold to Third Parties Total | $ 23,600,000 | $ 29,900,000 |  |  |
Total amount of outstanding SBA loans sold | 84,200,000 | 88,500,000 |  |  |
Loans and leases transferred to third parties total principal amount | 120,000,000 | 96,000,000 |  |  |
Gain (Loss) Recognized on Participation Interest in Originated Loans | 0 |  |  |  |
Total amount of outstanding loans transferred to third parties as loan participations | 279,500,000 | 222,900,000 |  |  |
Total amount of loan participations remaining on the Corporation's balance sheet | 367,400,000 | 339,000,000 |  |  |
Loans in the participation sold portfolio, considered impaired | 0 | 0 |  |  |
Loan participations purchased on the Corporation's balance sheet | $ 0 | $ 0 |  |  |
Number of loans | loans | 3 | 0 |  |  |
Financing Receivable, Excluding Accrued Interest, Modified, Subsequent Default | $ 382,000 |  |  |  |
Unfunded commitments, troubled debt restructurings | 0 |  |  |  |
Loans and leases receivable, difference between recorded investment and unpaid principal balance | 15,000 | $ 26,000 |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 31,275,000 | 24,230,000 |  | $ 24,336,000 | $ 28,521,000
Off-Balance-Sheet, Credit Loss, Liability | 1,722,000 |  |  |  |
Stockholders’ equity of the Corporation | 289,588,000 | 260,640,000 |  | 232,422,000 | 206,162,000
Net deferred tax asset | $ 9,508,000 | $ 11,711,000 |  |  |
Financing Receivable, Modifications, Subsequent Default, Number of Contracts | loans | 1 | 0 |  |  |
Non-performing loans and leases | $ 20,597,000 | $ 3,659,000 |  |  |
Minimum |  |  |  |  |
Financing Receivable, Credit Quality Indicator |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Days Past Due | days | 0 |  |  |  |
Maximum |  |  |  |  |
Financing Receivable, Credit Quality Indicator |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Days Past Due | days | 209 |  |  |  |
Inventory |  |  |  |  |
Financing Receivable, Credit Quality Indicator |  |  |  |  |
Non-performing loans and leases | $ 8,900,000 |  |  |  |
Accounts Receivable and Other Assets |  |  |  |  |
Financing Receivable, Credit Quality Indicator |  |  |  |  |
Non-performing loans and leases | 1,700,000 |  |  |  |
Equipment |  |  |  |  |
Financing Receivable, Credit Quality Indicator |  |  |  |  |
Non-performing loans and leases | 3,700,000 |  |  |  |
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Credit Quality Indicator |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 1,818,000 |  | $ 484,000 |  |
Off-Balance-Sheet, Credit Loss, Liability |  |  | 1,300,000 |  |
Stockholders’ equity of the Corporation |  | 1,353,000 | 1,400,000 |  |
Net deferred tax asset |  |  | $ 465,000 |  |
Commercial and industrial |  |  |  |  |
Financing Receivable, Credit Quality Indicator |  |  |  |  |
Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount | 882,000 |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | 18,710,000 | 11,128,000 |  | $ 8,413,000 | $ 10,593,000
Off-Balance-Sheet, Credit Loss, Liability | 698,000 |  |  |  |
Non-performing loans and leases | 20,575,000 | $ 3,629,000 |  |  |
Commercial and industrial | Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |
Financing Receivable, Credit Quality Indicator |  |  |  |  |
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest | $ 1,873,000 |  |  |  |

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