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Stock Options (Tables) | 6 Months Ended
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Jun. 30, 2013
Stock Options |
Summary of option activity under stock option plans | A summary of option activity under the stock option plans for the six months ended June 30, 2013 is as follows:
|  | Number of options |  | Weighted average exercise price |  | Weighted average remaining contractual term (years) |  | Aggregate intrinsic value ($) |
|  |  |  |  |  |  |  | (Dollars in Thousands) |
Options outstanding at December 31, 2012 |  | 794,877 |  | $ | 19.03 |  |  |  |  |
Plus: Options granted |  | — |  | — |  |  |  |  |
Less: |  |  |  |  |  |  |  |  |
Options exercised |  | 5,955 |  | 10.77 |  |  |  |  |
Options expired |  | 22,343 |  | 23.50 |  |  |  |  |
Options forfeited |  | 20,600 |  | 17.88 |  |  |  |  |
Options outstanding at June 30, 2013 |  | 745,979 |  | 19.00 |  | 3.37 |  | $ | 3,860 |
Options fully vested and exercisable at June 30, 2013 |  | 416,822 |  | $ | 22.71 |  | 1.59 |  | $ | 1,130 |

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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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