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Fair Value Measurement (Fair Value, by Balance Sheet Grouping) (Details) - USD ($) | Sep. 30, 2021 | Dec. 31, 2020
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Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Available-for-sale investment securities |  | $ 5,015,000 | $ 5,748,000
Held-to-maturity investment securities |  | 155,680,000 | 132,794,000
Equity securities |  | 505,000 | 515,000
Net loans and leases |  | 213,878,000 | 276,701,000
Carrying Value [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Cash and cash equivalents |  | 754,942,000 | 303,724,000
Available-for-sale investment securities |  | 5,015,000 | 5,748,000
Held-to-maturity investment securities |  | 152,791,000 | 128,292,000
Equity securities |  | 505,000 | 515,000
Loans held for sale |  | 23,154,000 | 25,506,000
Net loans and leases |  | 2,356,196,000 | 2,370,659,000
Restricted investment in bank stocks |  | 7,906,000 | 7,594,000
Accrued interest receivable |  | 10,008,000 | 3,619,000
Net Amounts Presented in the Consolidated Balance Sheets |  |  | 489,000
Mortgage banking derivative assets |  | 353,000 |
Deposits |  | 2,961,881,000 | 2,474,580,000
Short-term borrowings |  |  | 125,617,000
Long-term debt | [1] | 71,456,000 | 71,648,000
Subordinated debt |  | 44,599,000 | 44,580,000
Accrued interest payable |  | 1,901,000 | 2,007,000
Fair Value [Member] |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Cash and cash equivalents |  | 754,942,000 | 303,724,000
Available-for-sale investment securities |  | 5,015,000 | 5,748,000
Held-to-maturity investment securities |  | 155,680,000 | 132,794,000
Equity securities |  | 505,000 | 515,000
Loans held for sale |  | 23,436,000 | 26,262,000
Net loans and leases |  | 2,439,640,000 | 2,444,105,000
Restricted investment in bank stocks |  | 7,906,000 | 7,594,000
Accrued interest receivable |  | 10,008,000 | 3,619,000
Net Amounts Presented in the Consolidated Balance Sheets |  |  | 489,000
Mortgage banking derivative assets |  | 353,000 |
Deposits |  | 2,964,309,000 | 2,496,799,000
Short-term borrowings |  |  | 125,617,000
Long-term debt | [1] | 71,347,000 | 70,498,000
Subordinated debt |  | 46,218,000 | 43,098,000
Accrued interest payable |  | $ 1,901,000 | $ 2,007,000
[1] | Long-term debt excludes finance lease obligations.

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits. + References No definition available. + Details
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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226052-175313 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123594938&loc=d3e13433-108611 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Fair value of investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27232-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(6)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123581744&loc=SL120269820-111563 + Details
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- Definition Fair value portion of investments in Federal Home Loan Bank (FHLBank) stock. + References No definition available. + Details
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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details
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- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date. + References No definition available. + Details
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