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Employee Benefit Plans (Details Textual) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items] |  |  |
Liability | $ 645,000 |  |
Benefit | 31,000 |  |
National Bancshares Corporation |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
(Benefit) expense under the plan | 11 | $ 180,000 | $ 136
Liability under the Plan | $ 975 | 1,100 |
Director age for eligibility for annual retirement benefit plan | 70 years |  |
Maximum years for benefit payment under the plan | 15 years |  |
Cortland Acquisition |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Period of benefits paid for after retirement | 15 years |  |
Payment benefit for director retirement | $ 10,000 |  |
Period over which benefits paid to directors after retirement | 10 years |  |
Liability for post-retirement benefits | $ 1,700 |  |
Expense recognized for plans | 11,000 |  |
Benefits expected to be paid in 2022 | 748,000 |  |
Cortland Acquisition | Officers’ Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Liability for post-retirement benefits | 1,600 |  |
Cortland Acquisition | Directors Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Liability for post-retirement benefits | $ 138,000 |  |
Retirement Savings Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Employees who have completed no days of service | 90 days |  |
Percentage of matching contribution by company | 50.00% |  |
(Benefit) expense under the plan | $ 814 | 665 | 708
Retirement Savings Plan | Maximum |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Percentage of the participants' voluntary contributions of gross wages | 6.00% |  |
Profit Sharing Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
(Benefit) expense under the plan | $ 268 | $ 195 | $ 95
Annual compensation for associates, Percent | 2.00% | 2.00% | 1.00%
Deferred Compensation Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
(Benefit) expense under the plan | $ 6 | $ 7 | $ 7
Liability under the Plan | 94 | 105 |
Deferred compensation plan asset recorded | 2,500 | 1,900 |
Deferred compensation plan liability recorded | $ 2,500 | $ 1,900 |

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