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Stock Options (Tables) | 12 Months Ended
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Dec. 31, 2014
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, 2011 |  |  | 1,388,514 |  |  | $ | 7.44 |  |  | $ | 7.26 |
Options exercised, range from $3.67-$14.99 |  |  | (659,733 | ) |  |  | 7.05 |  |  |  |  |
Options expired |  |  | (23,436 | ) |  |  | 10.41 |  |  |  |  |
Balance outstanding, December 31, 2012 |  |  | 705,345 |  |  | $ | 7.70 |  |  | $ | 7.95 |
Options exercised, $7.50 |  |  | (126,149 | ) |  |  | 7.50 |  |  |  |  |
Options expired |  |  | (18,167 | ) |  |  | 7.50 |  |  |  |  |
Balance outstanding, December 31, 2013 |  |  | 561,029 |  |  | $ | 7.76 |  |  | $ | 7.70 |
Options granted, $11.49 |  |  | 277,025 |  |  |  | 11.49 |  |  |  |  |
Options exercised, $7.50 |  |  | (113,150 | ) |  |  | 7.50 |  |  |  |  |
Balance outstanding, December 31, 2014 |  |  | 724,904 |  |  | $ | 9.22 |  |  | $ | 7.82 |
Summary of Stock Options Summarized by Exercise Price | Information relating to stock options at December 31, 2014 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 |  |  | 421,200 |  |  |  | 71 |  |  | $ | 7.50 |  |  |  | 421,200 |  |  | $ | 7.50 |
$11.32-$14.75 |  |  | 303,704 |  |  |  | 115 |  |  | $ | 11.61 |  |  |  | 26,679 |  |  | $ | 12.90 |
|  |  | 724,904 |  |  |  |  |  |  | $ | 9.22 |  |  |  | 447,879 |  |  | $ | 7.82 |
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 December 31, 2013 and 2014 was as follows:
|  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Life (Months) |  |  | Intrinsic Value (thousands) |
As of December 31, 2013: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Incentive Stock Option Plans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding |  |  | 561,029 |  |  | $ | 7.76 |  |  |  | 83 |  |  | $ | 9,276 |
Expected to Vest |  |  | 560,972 |  |  | $ | 7.76 |  |  |  | 83 |  |  | $ | 9,275 |
Exercisable |  |  | 554,362 |  |  | $ | 7.70 |  |  |  | 83 |  |  | $ | 9,196 |
As of December 31, 2014: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Incentive Stock Option Plans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding |  |  | 724,904 |  |  | $ | 9.22 |  |  |  | 90 |  |  | $ | 1,774 |
Expected to Vest |  |  | 713,172 |  |  | $ | 9.19 |  |  |  | 89 |  |  | $ | 1,773 |
Exercisable |  |  | 447,879 |  |  | $ | 7.82 |  |  |  | 71 |  |  | $ | 1,738 |
Summary of Non-Vested Shares | A status summary of non-vested shares as of December 31, 2014, is presented below:
|  | Number of Shares |  |  | Weighted Average Grant-Date Fair Value |
Nonvested shares at January 1, 2014 |  |  | 376,702 |  |  | $ | 24.85 |
Granted |  |  | 240,724 |  |  | $ | 14.81 |
Vested |  |  | (35,812 | ) |  | $ | 14.74 |
Forfeited |  |  | (20,772 | ) |  | $ | 17.91 |
Nonvested shares at December 31, 2014 |  |  | 560,842 |  |  | $ | 21.44 |
Performance Shares |
Summary of Non-Vested Shares | A status summary of non-vested shares as of December 31, 2014, is presented below:
|  | Number of Shares |  |  | Weighted Average Grant-Date Fair Value |
Nonvested shares at January 1, 2014 |  |  | 24,637 |  |  | $ | 28.43 |
Granted |  |  | 79,270 |  |  | $ | 14.51 |
Nonvested shares at December 31, 2014 |  |  | 103,907 |  |  | $ | 17.81 |
Performance Based 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, 2013 |  |  | — |  |  | $ | — |  |  | $ | — |
Options granted, $11.49 |  |  | 107,689 |  |  |  | 11.49 |  |  |  |  |
Balance outstanding, December 31, 2014 |  |  | 107,689 |  |  | $ | 11.49 |  |  | $ | — |
Summary of Stock Options Summarized by Exercise Price | Information relating to performance stock options at December 31, 2014 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: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
$11.49 |  |  | 107,689 |  |  |  | 36 |  |  | $ | 11.49 |  |  |  | — |  |  | $ | — |
|  |  | 107,689 |  |  |  |  |  |  | $ | 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 performance options granted and exercisable and the weighted average remaining contractual life for performance options outstanding as of December 31, 2014 was as follows:
|  | Number of Shares |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Life (Months) |  |  | Intrinsic Value (thousands) |
As of December 31, 2014: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Performance Incentive Stock Option Plans: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding |  |  | 107,689 |  |  | $ | 11.49 |  |  |  | 36 |  |  | $ | 14 |
Expected to Vest |  |  | 107,689 |  |  | $ | 11.49 |  |  |  | 36 |  |  | $ | 14 |
Exercisable |  |  | — |  |  | $ | — |  |  |  | — |  |  | $ | — |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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