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Stock Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2018
Stock Based Compensation, Unamortized Stock-Based Compensation and Remaining Weighted Average Period | The following tables illustrate the Company’s stock based compensation, unamortized stock-based compensation, and remaining weighted average period for the three and six months ended June 30, 2018 and 2017.
|  | Stock-Based Compensation for the Three months ended |  |  | Stock-Based Compensation for the Six months ended |  |  | Unamortized Stock-Based Compensation |  |  | Remaining Weighted Average Period (years) |
June 30, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted Stock |  | $ | 988 |  |  | $ | 1,750 |  |  | $ | 7,424 |  |  |  | 2.2 |
Performance Based Restricted Stock |  |  | 481 |  |  |  | 1,028 |  |  |  | 3,336 |  |  |  | 2.2 |
Total |  | $ | 1,469 |  |  | $ | 2,778 |  |  | $ | 10,760 |  |  |  |  |
June 30, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Incentive Stock Options |  | $ | 86 |  |  | $ | 170 |  |  | $ | 193 |  |  |  | 0.5 |
Restricted Stock |  |  | 777 |  |  |  | 1,433 |  |  |  | 5,198 |  |  |  | 1.4 |
Performance Based Restricted Stock |  |  | 321 |  |  |  | 621 |  |  |  | 2,157 |  |  |  | 2.3 |
Performance Based Options |  |  | 58 |  |  |  | 98 |  |  |  | 117 |  |  |  | 0.5 |
Total |  | $ | 1,242 |  |  | $ | 2,322 |  |  | $ | 7,665 |  |  |  |  |
Summary of Option Activity | Option activity within each plan is as follows:
|  | Incentive Stock Option Plans |  |  | Weighted Average Price Per Share |  |  | Exercisable Weighted Average Price Per Share |
Balance outstanding, December 31, 2017 |  |  | 473,641 |  |  | $ | 9.38 |  |  | $ | 9.38 |
Options exercised |  |  | (40,923 | ) |  |  | 11.49 |  |  |  | — |
Balance outstanding, March 31, 2018 |  |  | 432,718 |  |  |  | 9.19 |  |  |  | 9.19 |
Options exercised |  |  | (38,360 | ) |  |  | 10.02 |  |  |  | — |
Balance outstanding, June 30, 2018 |  |  | 394,358 |  |  | $ | 9.12 |  |  | $ | 9.12 |
Summary of Stock Options Summarized by Exercise Price | Information relating to stock options at June 30, 2018, summarized by exercise price is as follows:
|  | Outstanding Weighted Average |  |  | Exercisable Weighted Average |
Exercise Price Per Share |  | Shares |  |  | Remaining Life (Months) |  |  | Exercise Price |  |  | Shares |  |  | Exercise Price |
Incentive Stock Option Plan: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
$7.50 |  |  | 233,545 |  |  |  | 29 |  |  | $ | 7.5 |  |  |  | 233,545 |  |  | $ | 7.50 |
$11.32—$14.49 |  |  | 160,813 |  |  |  | 76 |  |  | $ | 11.48 |  |  |  | 160,813 |  |  | $ | 11.48 |
|  |  | 394,358 |  |  |  |  |  |  | $ | 9.12 |  |  |  | 394,358 |  |  | $ | 9.12 |
Weighted Average Exercise Prices for Options Granted and Exercisable and Weighted Average Remaining Contractual Life for Options Outstanding | The weighted average exercise prices for options granted, and exercisable, and the weighted average remaining contractual life for options outstanding as of June 30, 2018, were as follows:
As of June 30, 2018 |  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Life (Months) |  |  | Intrinsic Value (thousands) |
Incentive Stock Option Plan: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding |  |  | 394,358 |  |  | $ | 9.12 |  |  |  | 48 |  |  | $ | 5,452 |
Expected to Vest |  |  | 394,358 |  |  | $ | 9.12 |  |  |  | 48 |  |  | $ | 5,452 |
Exercisable |  |  | 394,358 |  |  | $ | 9.12 |  |  |  | 48 |  |  | $ | 5,452 |
Performance Based Stock Options |
Summary of Option Activity | Performance option activity is as follows:
|  | Incentive Stock Option Plans |  |  | Weighted Average Price Per Share |  |  | Exercisable Weighted Average Price Per Share |
Balance outstanding, December 31, 2017 and March 31, 2018 |  |  | 81,666 |  |  | $ | 11.49 |  |  | $ | 11.49 |
Additional vesting based on performance |  |  | 77,598 |  |  |  | 11.49 |  |  |  | — |
Options exercised |  |  | (17,839 | ) |  |  | 11.49 |  |  |  | — |
Balance outstanding, June 30, 2018 |  |  | 141,425 |  |  | $ | 11.49 |  |  | $ | 11.49 |
Performance Incentive Stock Option Plan |
Summary of Stock Options Summarized by Exercise Price | Information relating to stock options at June 30, 2018 summarized by exercise price is as follows:
|  | Outstanding Weighted Average |  |  | Exercisable Weighted Average |
Exercise Price Per Share |  | Shares |  |  | Remaining Life (Months) |  |  | Exercise Price |  |  | Shares |  |  | Exercise Price |
Performance Incentive Stock Option Plan: |  |  | 141,425 |  |  |  | 78 |  |  | $ | 11.49 |  |  |  | 141,425 |  |  | $ | 11.49 |
Weighted Average Exercise Prices for Options Granted and Exercisable and Weighted Average Remaining Contractual Life for Options Outstanding | The weighted average exercise prices for options granted and exercisable and the weighted average remaining contractual life for options outstanding as of June 30, 2018 are as follows:
As of June 30, 2018 |  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Life (Months) |  |  | Intrinsic Value (thousands) |
Performance Incentive Stock Option Plan: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding |  |  | 141,425 |  |  | $ | 11.49 |  |  |  | 78 |  |  | $ | 1,621 |
Expected to Vest |  |  | 141,425 |  |  | $ | 11.49 |  |  |  | 78 |  |  | $ | 1,621 |
Exercisable |  |  | 141,425 |  |  | $ | 11.49 |  |  |  | 78 |  |  | $ | 1,621 |
Common Stock Grants |
Summary of Non-Vested Shares | Common stock grants — A summary of non-vested shares as of, and for, the three and six months ended June 30, 2018 and 2017 is presented below:
|  | Six Months Ended June 30, 2018 |  |  | Six Months Ended June 30, 2017 |
|  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |  |  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |
Nonvested shares at December 31st |  |  | 391,753 |  |  | $ | 15.61 |  |  |  | 324,756 |  |  | $ | 14.75 |
Granted |  |  | 254,972 |  |  |  | 19.97 |  |  |  | 251,475 |  |  |  | 16.10 |
Vested |  |  | (8,800 | ) |  |  | 12.07 |  |  |  | (10,100 | ) |  |  | 12.95 |
Forfeited |  |  | (5,265 | ) |  |  | 16.51 |  |  |  | (6,544 | ) |  |  | 15.26 |
Nonvested shares at March 31st |  |  | 632,660 |  |  |  | 17.41 |  |  |  | 559,587 |  |  |  | 15.38 |
Granted |  |  | 22,308 |  |  |  | 23.66 |  |  |  | 38,502 |  |  |  | 17.08 |
Vested |  |  | (20,313 | ) |  |  | 22.82 |  |  |  | (188,400 | ) |  |  | 15.22 |
Forfeited |  |  | (6,424 | ) |  |  | 17.25 |  |  |  | (6,593 | ) |  |  | 15.55 |
Nonvested shares at June 30th |  |  | 628,231 |  |  | $ | 17.40 |  |  |  | 403,096 |  |  | $ | 15.61 |
Performance Based Restricted Shares |
Summary of Non-Vested Shares | Performance Based Shares—A summary of non-vested performance based shares as of, and for, the six months ended June 30, 2018 and 2017, respectively is presented below:
|  | Six Months Ended June 30, 2018 |  |  | Six Months Ended June 30, 2017 |
|  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |  |  | Number of Shares |  |  | Weighted Average Grant Date Fair Value |
Nonvested shares at December 31st |  |  | 186,057 |  |  | $ | 14.93 |  |  |  | 119,022 |  |  | $ | 14.18 |
Granted |  |  | 122,446 |  |  |  | 18.79 |  |  |  | 121,194 |  |  |  | 15.40 |
Vested |  |  | (14,625 | ) |  |  | 11.01 |  |  |  | — |  |  |  | — |
Forfeited |  |  | (1,765 | ) |  |  | 15.40 |  |  |  | — |  |  |  | — |
Nonvested shares at March 31st |  |  | 292,113 |  |  |  | 16.74 |  |  |  | 240,216 |  |  |  | 14.80 |
Granted |  |  | 3,850 |  |  |  | 22.69 |  |  |  | 7,400 |  |  |  | 15.88 |
Vested |  |  | — |  |  |  | — |  |  |  | (48,046 | ) |  |  | 14.92 |
Forfeited |  |  | (2,179 | ) |  |  | 17.67 |  |  |  | (12,560 | ) |  |  | 12.92 |
Nonvested shares at June 30th |  |  | 293,784 |  |  | $ | 16.81 |  |  |  | 187,010 |  |  | $ | 14.93 |

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- Definition Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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