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Employee Benefit Plans (Details 4) (USD $)
 12 Months Ended
Dec. 31, 2014
Options Outstanding  
Number Outstanding at the end of the period (in shares) 61,681us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
Weighted-Average Remaining Contractual Life 7 years 5 months 19 days
Weighted Average Exercise Price (in dollars per share) $ 12.13us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
Options Exercisable  
Number Exercisable at the end of the period (in shares) 24,613us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
Weighted Average Exercise Price (in dollars per share) $ 10.13us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
Weighted Average Exercise Price - $9.33  
Options Outstanding  
Number Outstanding at the end of the period (in shares) 9,612us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
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Weighted-Average Remaining Contractual Life 5 years 1 month 24 days
Weighted Average Exercise Price (in dollars per share) $ 9.33us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
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Options Exercisable  
Number Exercisable at the end of the period (in shares) 8,459us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
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Weighted Average Exercise Price (in dollars per share) $ 9.33us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
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Weighted Average Exercise Price - $9.55  
Options Outstanding  
Number Outstanding at the end of the period (in shares) 10,551us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
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Weighted-Average Remaining Contractual Life 6 years 1 month 24 days
Weighted Average Exercise Price (in dollars per share) $ 9.55us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
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Options Exercisable  
Number Exercisable at the end of the period (in shares) 8,030us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
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Weighted Average Exercise Price (in dollars per share) $ 9.55us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
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Weighted Average Exercise Price - $9.58  
Options Outstanding  
Number Outstanding at the end of the period (in shares) 9,092us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
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Weighted-Average Remaining Contractual Life 7 years 1 month 24 days
Weighted Average Exercise Price (in dollars per share) $ 9.58us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
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Options Exercisable  
Number Exercisable at the end of the period (in shares) 4,513us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
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Weighted Average Exercise Price (in dollars per share) $ 9.58us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
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Weighted Average Exercise Price $14.00  
Options Outstanding  
Number Outstanding at the end of the period (in shares) 15,316us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
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Weighted-Average Remaining Contractual Life 8 years 1 month 24 days
Options Exercisable  
Number Exercisable at the end of the period (in shares) 3,611us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
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Weighted Average Exercise Price (in dollars per share) $ 14.00us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1
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Weighted Average Exercise Price Five $14.98  
Options Outstanding  
Number Outstanding at the end of the period (in shares) 17,110us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
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Weighted-Average Remaining Contractual Life 9 years 1 month 24 days
Weighted Average Exercise Price (in dollars per share) $ 14.98us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1
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