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Stock-Based Incentive Plan (Tables)
3 Months Ended
Mar. 31, 2020
Share-based Payment Arrangement [Abstract]  
Status of Options Granted Under Long-Term Incentive Plan
The following is a summary of the Corporation's stock option activity and related information for the three months ended March 31, 2020:
(Dollars in thousands, except per share data)Shares Under OptionWeighted Average Exercise Price Per ShareWeighted Average Remaining Contractual Life (Years)Aggregate Intrinsic Value at March 31, 2020
Outstanding at December 31, 2019508,111  $24.83  
Expired(500) 28.50  
Forfeited(3,152) 28.44  
Exercised(5,000) 18.70  
Outstanding at March 31, 2020499,459  24.86  6.2$ 
Exercisable at March 31, 2020445,481  24.42  6.0 
Summary of Nonvested Stock Options
The following is a summary of nonvested stock options at March 31, 2020 including changes during the three months then ended:
(Dollars in thousands, except per share data) Nonvested Stock Options Weighted Average Grant Date Fair Value
Nonvested stock options at December 31, 2019163,261  $6.54  
Vested(106,131) 6.58  
Forfeited(3,152) 6.50  
Nonvested stock options at March 31, 202053,978  6.46  
Summary of Nonvested Restricted Stock Awards and Units
The following is a summary of nonvested restricted stock awards and nonvested restricted stock units at March 31, 2020 including changes during the three months then ended:
(Dollars in thousands, except per share data) Nonvested Stock Awards and Units Weighted Average Grant Date Fair Value
Nonvested stock awards and units at December 31, 2019209,378  $26.76  
Granted179,080  18.62  
Vested(57,355) 27.23  
Cancelled(19,367) 27.72  
Nonvested stock awards and units at March 31, 2020311,736  21.94  
Certain Information Regarding Restricted Stock
Certain information regarding restricted stock awards and units is summarized below for the periods indicated:
Three Months Ended March 31,
(Dollars in thousands, except per share data)20202019
Restricted stock awards and units granted179,080  113,729  
Weighted average grant date fair value$18.62  $25.66  
Intrinsic value of awards granted$2,923  $2,782  
Restricted stock awards and units vested57,355  32,965  
Weighted average grant date fair value$27.23  $21.86  
Intrinsic value of awards vested$1,335  $809  
Schedule of Unrecognized Compensation Cost, Nonvested Awards The total unrecognized compensation expense and the weighted average period over which unrecognized compensation expense is expected to be recognized related to nonvested stock options and nonvested restricted stock awards and units at March 31, 2020 is presented below:
(Dollars in thousands)Unrecognized Compensation CostWeighted-Average Period Remaining (Years)
Stock options$306  1.0
Restricted stock awards and units5,338  2.4
$5,644  2.3
Compensation Expense Related to Stock Incentive Plans Recognized
The following table presents information related to the Corporation’s compensation expense related to stock incentive plans recognized for the periods indicated:
Three Months Ended March 31,
(Dollars in thousands)20202019
Stock-based compensation expense:
Stock options$108  $216  
Restricted stock awards and units327  361  
Employee stock purchase plan20  17  
Total$455  $594  
Tax benefit on nonqualified stock option expense, restricted stock awards and disqualifying dispositions of incentive stock options$106  $165