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Borrowings and Borrowing Capacity - Summary of Junior Subordinated Debentures (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Debt Instrument [Line Items] |  |
Face Value | $ 51,031,000 |
Carrying Value | 40,602,000 | $ 40,072,000
National Bancshares Capital Trust II |  |
Debt Instrument [Line Items] |  |
Face Value | 15,464,000 |
Carrying Value | $ 13,350,000 |
Interest rate at December 31 | 3.20% |
National Bancshares Capital Trust II | London Interbank Offered Rate (LIBOR) |  |
Debt Instrument [Line Items] |  |
Interest rate | 3.00% |
National Bancshares Capital Trust III |  |
Debt Instrument [Line Items] |  |
Face Value | $ 17,526,000 |
Carrying Value | $ 13,188,000 |
Interest rate at December 31 | 1.76% |
National Bancshares Capital Trust III | London Interbank Offered Rate (LIBOR) |  |
Debt Instrument [Line Items] |  |
Interest rate | 1.64% |
ColoEast Capital Trust I |  |
Debt Instrument [Line Items] |  |
Face Value | $ 5,155,000 |
Carrying Value | $ 3,683,000 |
Interest rate at December 31 | 1.82% |
ColoEast Capital Trust I | London Interbank Offered Rate (LIBOR) |  |
Debt Instrument [Line Items] |  |
Interest rate | 1.60% |
ColoEast Capital Trust II |  |
Debt Instrument [Line Items] |  |
Face Value | $ 6,700,000 |
Carrying Value | $ 4,784,000 |
Interest rate at December 31 | 2.01% |
ColoEast Capital Trust II | London Interbank Offered Rate (LIBOR) |  |
Debt Instrument [Line Items] |  |
Interest rate | 1.79% |
Valley Bancorp Statutory Trust I |  |
Debt Instrument [Line Items] |  |
Face Value | $ 3,093,000 |
Carrying Value | $ 2,892,000 |
Interest rate at December 31 | 3.62% |
Valley Bancorp Statutory Trust I | London Interbank Offered Rate (LIBOR) |  |
Debt Instrument [Line Items] |  |
Interest rate | 3.40% |
Valley Bancorp Statutory Trust II |  |
Debt Instrument [Line Items] |  |
Face Value | $ 3,093,000 |
Carrying Value | $ 2,705,000 |
Interest rate at December 31 | 2.87% |
Valley Bancorp Statutory Trust II | London Interbank Offered Rate (LIBOR) |  |
Debt Instrument [Line Items] |  |
Interest rate | 2.75% |

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- Definition Including the current and noncurrent portions, the face value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. + References No definition available. + Details
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- Definition The average effective interest rate during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1F -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495355-112611 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Including the current and noncurrent portions, the carrying value of junior subordinated long-term debt owed to unconsolidated subsidiary trusts as of the balance sheet date. Such debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets and was initially scheduled to be repaid after one year or beyond the normal operating cycle if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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