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Fair Value Measurements (Details 2) - 6 months ended Jun. 30, 2015 - Nonrecurring Basis [Member]
Total
Impaired Loans [Member]  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Valuation technique

Discounted Appraisals

Unobservable Input

Collateral Discounts

Description of general range of inputs
0-25%
Impaired Loans [Member] | Lower Range [Member]  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Discount rate (in percent) 0.00%
Impaired Loans [Member] | Upper Range [Member]  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Discount rate (in percent) 25.00%
Other real estate owned [Member]  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Valuation technique

Appraisal Value/ Comparison Sales/Other Estimates

Unobservable Input

Appraisals and/or Sales of Comparable Properties

Description of general range of inputs

Appraisals Discounted 10% to 20% for Sales Commissions and Other Holding Costs

Other real estate owned [Member] | Lower Range [Member]  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Discount rate (in percent) 10.00%
Other real estate owned [Member] | Upper Range [Member]  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Discount rate (in percent) 20.00%