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Loan Commitments and Other Related Activities (Narrative) (Details)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Contractual Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]    
Period for commitments and construction loan commitments 60 days  
Construction [Member]    
Contractual Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]    
Period for commitments and construction loan commitments 1 year  
Minimum [Member]    
Contractual Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]    
Interest rates for fixed rate loan commitments 4.25% 3.25%
Maturities for fixed rate loan commitments 3 months 18 months
Maximum [Member]    
Contractual Commitments Contingencies And Off Balance Sheet Arrangements [Line Items]    
Interest rates for fixed rate loan commitments 6.50% 5.00%
Maturities for fixed rate loan commitments 14 years 30 years