Share-Based Compensation (Policies)	9 Months Ended
Share-Based Compensation (Policies)	Sep. 30, 2021
Share-based Payment Arrangement [Abstract]
Share-based Compensation, Option and Incentive Plans	The Corporation adopted the 2019 Equity Incentive Plan (the “Plan”) during the quarter ended June 30, 2019. At the 2021 annual shareholders meeting, an amendment to the 2019 equity plan was approved, increasing the number of shares in the plan by 180,000. The Plan is administered by the Compensation Committee of the Board of Directors of the Corporation and provides for the grant of equity ownership opportunities through incentive stock options and nonqualified stock options (“Stock Options”), restricted stock, restricted stock units, dividend equivalent units, and any other type of award permitted by the Plan. As of September 30, 2021, 218,880 shares were available for future grants under the Plan. Shares covered by awards that expire, terminate, or lapse will again be available for the grant of awards under the Plan. The Corporation may issue new shares and shares from its treasury stock for shares delivered under the Plan. Restricted Stock Under the Plan, the Corporation may grant restricted stock awards, restricted stock units, and other stock-based awards to plan participants, subject to forfeiture upon the occurrence of certain events until the dates specified in the participant’s award agreement. While restricted stock is subject to forfeiture, restricted stock award participants may exercise full voting rights and will receive all dividends and other distributions paid with respect to the restricted shares. Restricted stock units do not have voting rights and are provided dividend equivalents. The restricted stock granted under the Plan is typically subject to a vesting period. Compensation expense for restricted stock is recognized over the requisite service period of generally three or four years for the entire award on a straight-line basis. Upon vesting of restricted stock, the benefit of tax deductions in excess of recognized compensation expense is reflected as an income tax benefit in the unaudited Consolidated Statements of Income. The Corporation may issue a combination of performance-based restricted stock units and restricted stock awards to its executive officers. Vesting of the performance based restricted stock units will be measured on Total Shareholder Return (“TSR”) and Return on Average Equity (“ROAE”) and will cliff-vest after a three-year measurement period based on the Corporation’s performance relative to a custom peer group. At the end of the performance period, the number of actual shares to be awarded varies between 0% and 200% of target amounts. The restricted stock awards issued to executive officers will vest ratably over a three-year period. Compensation expense is recognized for performance-based restricted stock units over the requisite service and performance period of generally three years for the entire expected award on a straight-line basis. The compensation expense for the awards expected to vest for the percentage of performance-based restricted stock units subject to the ROAE metric will be adjusted if there is a change in the expectation of ROAE. The compensation expense for the awards expected to vest for the percentage of performance based restricted stock units subject to the TSR metric are never adjusted, and are amortized utilizing the accounting fair value provided using a Monte Carlo pricing model.