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Note 10 - Stock-based Compensation Plans | 3 Months Ended
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Mar. 31, 2020
Notes to Financial Statements |
Share-based Payment Arrangement [Text Block] | 10. STOCK-BASED COMPENSATION PLANS The Corporation has a Stock Incentive Plan for a selected group of officers and an Independent Directors Stock Incentive Plan. In the first quarter 2020, the Corporation awarded 48,284 shares of restricted stock under the Stock Incentive Plan and 7,580 shares of restricted stock under the Independent Directors Stock Incentive Plan. The 2020 restricted stock awards under the Stock Incentive Plan vest ratably over three years, and include 30,381 time-based awards with a total fair value of $801,000 at the date of grant and 17,903 performance-based awards with a total fair value of $343,000 at date of grant. The 2020 restricted stock issued under the Independent Directors Stock Incentive Plan are time-based awards, vesting over one year, with a total fair value of $200,000 at the date of grant. Compensation cost related to restricted stock is recognized based on the fair value of the stock at the grant date over the vesting period, adjusted for estimated and actual forfeitures. Total annual stock-based compensation for the year ending December 31, 2020 is estimated to total $893,000. Total stock-based compensation expense attributable to restricted stock awards amounted to $194,000 in the first quarter 2020 and $229,000 in the first quarter 2019.

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