Borrowed Funds (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2014
item
entity
Dec. 31, 2013
Federal funds purchase line available under repurchase agreements $ 140,000,000  
Number of Entities with Repurchase Agreement Lines Available 4  
Repurchase Agreement transaction period one-to-four day  
Number of Repurchase Agreements that Exceed Ten Percent of Equity Capital 0  
Loans pledged under FHLB agreement 528,400,000 517,800,000
Investment Securities Pledged Under FHLB Agreement 0 50,100,000
Total Amount Available Under the Borrower-In-Custody Program 0  
First Year of Scheduled FHLB Principlal Payments 2016  
Line of Credit Facility, Maximum Borrowing Capacity 60,700,000  
Bank SNB [Member]    
Federal Home Loan Bank Advances $ 25,000,000