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Stock Based Compensation (Details 1) - 6 months ended Jun. 30, 2015 - Employee Stock Option [Member] - $ / shares | Total
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Share Based Compensation Arrangement By Share Based Payment Award Line Items |
Shares - Nonvested at January 1, 2015 (in shares) | 12,775
Shares - Granted (in shares) | 7,250
Shares - Vested (in shares) | (300)
Shares - Forfeited (in shares) | 0
Shares - Nonvested at June 30, 2015 (in shares) | 19,725
Weighted Average Grant Date Fair Value - Nonvested at January 1, 2015 (in dollars per share) | $ 23.63
Weighted Average Grant Date Fair Value - Granted (in dollars per share) | 27.5
Weighted Average Grant Date Fair Value - Vested (in dollars per share) | 16.75
Weighted Average Grant Date Fair Value - Forfeited (in dollars per share) | 0
Weighted Average Grant Date Fair Value - Nonvested at June 30, 2015 (in dollars per share) | $ 25.15

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average grant-date fair value of non-vested options forfeited. + References No definition available. + Details
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