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Stock Compensation | 3 Months Ended
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Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock Compensation |
2. | STOCK COMPENSATION
The Corporation has a stock incentive plan for key employees and independent directors. The stock incentive plan, which is administered by a committee of the Board of Directors, provides for aggregate grants of up to 500,000 shares of common stock in the form of nonqualified options or restricted stock. For key employees, the plan vesting is either one-third or one-fourth of the granted options or restricted stock per year, beginning one year after the grant date, with 100% vesting on the third or fourth anniversary of the grant date, respectively. Prior to 2018, for independent directors, the vesting schedule is one-third of the granted options or restricted stock per year beginning one year after the grant date, with 100% vested on the third anniversary of the grant date. Beginning in 2018, stock compensation received by independent directors vests immediately. At March 31, 2018, there was no unrecognized compensation cost related to nonvested stock options granted under this plan and no stock options were granted during the three month periods ended March 31, 2018 and 2017. In addition to the time-based restricted stock disclosed above, the Corporation’s Board of Directors grants performance-based restricted stock awards (“PBRSAs”) to key employees. The number of PBRSAs will depend on certain performance conditions and are also subject to service-based vesting. In 2018, awards with a maximum of 15,702 shares in aggregate were granted to key employees. In 2017, an award with a maximum of 10,000 shares was granted to a key employee. Compensation expense for the restricted stock awards is recognized over the requisite service period noted above based on the fair value of the shares at the date of grant. Nonvested restricted stock awards are recorded as a reduction of additional paid-in-capital in shareholders’ equity until earned. Compensation expense resulting from these restricted stock awards was $674 and $189 for the three months ended March 31, 2018 and 2017, respectively. As of March 31, 2018, there was $1,584 of total unrecognized compensation cost related to unvested restricted stock awards. A summary of changes in time-based nonvested restricted stock awards for the three months ended March 31, 2018 follows:
|  |  |  |  | Per Share Weighted Average |
|  | Shares |  |  | Grant Date Fair Value |
Nonvested at beginning of period |  |  | 94,472 |  |  | $ | 20.79 |
Granted |  |  | 22,108 |  |  |  | 26.92 |
Vested |  |  | (40,105 | ) |  |  | 19.69 |
Nonvested at end of period |  |  | 76,475 |  |  | $ | 23.07 |
The above table excludes 15,600 shares that were granted and immediately vested. Compensation expense resulting from the immediately vested shares was $385 for the three months ended March 31, 2018, and is included in the previously disclosed $674 above. The fair value of shares vested was $1,462 and $917 during the three months ended March 31, 2018 and 2017, respectively.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI http://asc.fasb.org/topic&trid=2228938 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -URI http://asc.fasb.org/subtopic&trid=2208855 + Details
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