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Stock Based Compensation (Details 1) - Employee Stock Option [Member] | 9 Months Ended
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Sep. 30, 2017 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Shares - Nonvested, Beginning Balance (in shares) | shares | 28,465
Shares - Granted (in shares) | shares | 4,575
Shares - Vested (in shares) | shares | 1,625
Shares - Forfeited (in shares) | shares | 725
Shares - Nonvested, Ending Balance (in shares) | shares | 30,690
Weighted Average Exercise Price - Nonvested, Beginning Balance (in dollars per share) | $ / shares | $ 26.67
Weighted Average Exercise Price - Granted (in dollars per share) | $ / shares | 39
Weighted Average Exercise Price - Vested (in dollars per share) | $ / shares | 25.81
Weighted Average Exercise Price - Forfeited (in dollars per share) | $ / shares | 28.62
Weighted Average Exercise Price - Nonvested, Ending Balance (in dollars per share) | $ / shares | $ 28.51

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- Definition Weighted average exercise price of non-vested options. + References No definition available. + Details
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- Definition Weighted average exercise price of non-vested options forfeiture in period. + References No definition available. + Details
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- Definition Weighted average exercise price of non-vested options grant in period + References No definition available. + Details
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- Definition Weighted average exercise price of non-vested options vested in period + References No definition available. + Details
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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 Number of non-vested options outstanding. + References No definition available. + Details
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- Definition Number of non-vested options forfeited. + References No definition available. + Details
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- Definition Number of options vested. + References No definition available. + Details
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- Details
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