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Stock-Based Compensation | 3 Months Ended
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Mar. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Stock-Based Compensation | Note 10. Stock-Based Compensation The Company maintains the 2016 Stock Plan (“2016 Plan”), the 2006 Stock Plan (“2006 Plan”) and the 2011 Employee Stock Purchase Plan (“2011 ESPP”). In connection with the acquisition of Virginia Heritage, the Company assumed the Virginia Heritage 2006 Stock Option Plan and the 2010 Long Term Incentive Plan (the “Virginia Heritage Plans”). No additional options may be granted under the 2006 Plan or the Virginia Heritage Plans. The Company adopted the 2016 Plan upon approval by the shareholders at the 2016 Annual Meeting held on May 12, 2016. The 2016 Plan provides directors and selected employees of the Bank, the Company and their affiliates with the opportunity to acquire shares of stock, through awards of options, time vested restricted stock, performance-based restricted stock and stock appreciation rights. Under the 2016 Plan, 1,000,000 shares of common stock were initially reserved for issuance. For awards that are service based, compensation expense is being recognized over the service (vesting) period based on fair value, which for stock option grants is computed using the Black-Scholes model. For restricted stock awards granted under the 2016 plan, fair value is based on the Company’s closing price on the date of grant. For awards that are performance-based, compensation expense is recorded based on the probability of achievement of the goals underlying the grant. For restricted stock awards granted under the 2006 plan, fair value is based on the average of the high and low stock price of the Company’s shares on the date of grant. In February 2018, the Company awarded 94,344 shares of time vested restricted stock to senior officers, directors, and certain employees. The shares vest in three substantially equal installments beginning on the first anniversary of the date of grant. In February 2018, the Company awarded senior officers a targeted number of 42,533 performance vested restricted stock units (PRSUs). The vesting of PRSUs is 100% after three years with payouts based on threshold, target or maximum average performance targets over the three year period relative to a peer index. There are two performance metrics: 1) average annual earnings per share growth; and 2) average annual return on average assets. Each metric is measured against companies in the KBW Regional Banking Index. The Company has unvested restricted stock awards and PRSU grants of 274,796 shares at March 31, 2018. Unrecognized stock based compensation expense related to restricted stock awards and PRSU grants totaled $13.5 million at March 31, 2018. At such date, the weighted-average period over which this unrecognized expense was expected to be recognized was 2.33 years. The following tables summarize the unvested restricted stock awards activity for the three months ended March 31, 2018 and 2017.
|  | Three Months Ended March 31, |
|  | 2018 |  |  | 2017 |
Perfomance Awards |  | Shares |  |  | Weighted-Average Grant Date Fair Value |  |  | Shares |  |  | Weighted-Average Grant Date Fair Value |
Unvested at beginning |  |  | 62,338 |  |  | $ | 50.45 |  |  |  | 33,226 |  |  | $ | 42.60 |
Issued |  |  | 42,533 |  |  |  | 60.45 |  |  |  | 36,523 |  |  |  | 57.49 |
Forfeited |  |  | (5,913 | ) |  |  | 50.28 |  |  |  | — |  |  |  | — |
Vested |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Unvested at end |  |  | 98,958 |  |  | $ | 54.76 |  |  |  | 69,749 |  |  | $ | 50.40 |
|  | Three Months Ended March 31, |
|  | 2018 |  |  | 2017 |
Time Vested Awards |  | Shares |  |  | Weighted-Average Grant Date Fair Value |  |  | Shares |  |  | Weighted-Average Grant Date Fair Value |
Unvested at beginning |  |  | 164,043 |  |  | $ | 53.57 |  |  |  | 262,966 |  |  | $ | 33.60 |
Issued |  |  | 94,344 |  |  |  | 60.45 |  |  |  | 91,097 |  |  |  | 62.70 |
Forfeited |  |  | (5,165 | ) |  |  | 55.60 |  |  |  | (371 | ) |  |  | 42.93 |
Vested |  |  | (77,384 | ) |  |  | 49.67 |  |  |  | (176,134 | ) |  |  | 28.73 |
Unvested at end |  |  | 175,838 |  |  | $ | 58.92 |  |  |  | 177,558 |  |  | $ | 53.34 |
Below is a summary of stock option activity for the three months ended March 31, 2018 and 2017. The information excludes restricted stock units and awards.
|  | Three Months Ended March 31, |
|  | 2018 |  |  | 2017 |
|  | Shares |  |  | Weighted-Average Exercise Price |  |  | Shares |  |  | Weighted-Average Exercise Price |
Beginning balance |  |  | 143,224 |  |  | $ | 9.13 |  |  |  | 216,859 |  |  | $ | 8.80 |
Issued |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Exercised |  |  | (32,230 | ) |  |  | 10.48 |  |  |  | (2,675 | ) |  |  | 24.67 |
Forfeited |  |  | (500 | ) |  |  | 24.86 |  |  |  | — |  |  |  | — |
Expired |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Ending balance |  |  | 110,494 |  |  | $ | 8.67 |  |  |  | 214,184 |  |  | $ | 8.60 |
The following summarizes information about stock options outstanding at March 31, 2018. The information excludes restricted stock units and awards.
|  |  |  |  |  |  |  |  |  |  |  | Weighted-Average |
Outstanding: |  |  | Stock Options |  |  | Weighted-Average |  |  | Remaining |
Range of Exercise Prices |  |  | Outstanding |  |  | Exercise Price |  |  | Contractual Life |
$5.76 |  |  |  | $10.72 |  |  |  |  | 97,995 |  |  | $ | 5.76 |  |  |  | 0.78 |
$10.73 |  |  |  | $11.40 |  |  |  |  | 5,089 |  |  |  | 11.17 |  |  |  | 3.63 |
$11.41 |  |  |  | $24.86 |  |  |  |  | 660 |  |  |  | 20.03 |  |  |  | 4.82 |
$24.87 |  |  |  | $49.91 |  |  |  |  | 6,750 |  |  |  | 47.83 |  |  |  | 7.87 |
|  |  |  |  |  |  |  |  | 110,494 |  |  | $ | 8.67 |  |  |  | 1.36 |
Exercisable: |  |  | Stock Options |  |  | Weighted-Average |
Range of Exercise Prices |  |  | Exercisable |  |  | Exercise Price |
$5.76 |  |  |  | $10.72 |  |  |  |  | 80,646 |  |  | $ | 5.76 |
$10.73 |  |  |  | $11.40 |  |  |  |  | 5,089 |  |  |  | 11.17 |
$11.41 |  |  |  | $24.86 |  |  |  |  | 660 |  |  |  | 20.03 |
$24.87 |  |  |  | $49.91 |  |  |  |  | 2,000 |  |  |  | 47.62 |
|  |  |  |  |  |  |  |  | 88,395 |  |  | $ | 7.13 |
The fair value of each stock option grant is estimated on the date of grant using the Black-Scholes option pricing model with the assumptions as shown in the table below used for grants during the years ended December 31, 2017 and 2016. There were no grants of stock options during the three months ended March 31, 2018.
|  | Three Months Ended |  |  | Years Ended December 31, |
|  | March 31, 2018 |  |  | 2017 |  |  | 2016 |
Expected volatility |  |  | n/a |  |  |  | n/a |  |  |  | 24.23 | %
Weighted-Average volatility |  |  | n/a |  |  |  | n/a |  |  |  | 24.23 | %
Expected dividends |  |  | — |  |  |  | — |  |  |  | — |
Expected term (in years) |  |  | n/a |  |  |  | n/a |  |  |  | 7.0 |
Risk-free rate |  |  | n/a |  |  |  | n/a |  |  |  | 1.37 | %
Weighted-average fair value (grant date) |  |  | n/a |  |  |  | n/a |  |  | $ | 14.27 |
The total intrinsic value of outstanding stock options was $5.7 million and $11.0 million, respectively, at March 31, 2018 and 2017. The total intrinsic value of stock options exercised during the three months ended March 31, 2018 and 2017 was $1.6 million and $103 thousand. The total fair value of stock options vested was $34 thousand for both the three months ended March 31, 2018 and 2017. Unrecognized stock-based compensation expense related to stock options totaled $57 thousand at March 31, 2018. At such date, the weighted-average period over which this unrecognized expense was expected to be recognized was 1.76 years. Approved by shareholders in May 2011, the 2011 ESPP reserved 550,000 shares of common stock (as adjusted for stock dividends) for issuance to employees. Whole shares are sold to participants in the plan at 85% of the lower of the stock price at the beginning or end of each quarterly offering period. The 2011 ESPP is available to all eligible employees who have completed at least one year of continuous employment, work at least 20 hours per week and at least five months a year. Participants may contribute a minimum of $10 per pay period to a maximum of $6,250 per offering period or $25,000 annually (not to exceed more than 10% of compensation per pay period). At March 31, 2018, the 2011 ESPP had 399,383 shares reserved for issuance. Included in salaries and employee benefits in the accompanying Consolidated Statements of Operations, the Company recognized $1.5 million and $1.9 million in stock-based compensation expense for the three months ended March 31, 2018 and 2017, respectively. Stock-based compensation expense is recognized ratably over the requisite service period for all awards.

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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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