Other Borrowed Funds (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
Other borrowed funds disclosures
Borrowings outstanding	$ 57,452,000	$ 49,441,000
Federal Home Loan Bank Advances [Member]
Other borrowed funds disclosures
Borrowings outstanding	51,835,000	46,858,000
Total borrowing capacity available	414,100,000	301,000,000
Average interest rate of outstanding balances	0.27%	0.32%
Federal Reserve Bank Advances [Member]
Other borrowed funds disclosures
Borrowings outstanding	0	0
Available borrowing capacity	313,700,000	288,600,000
Securities Sold under Agreements to Repurchase [Member]
Other borrowed funds disclosures
Borrowings outstanding	5,617,000	2,583,000
Federal Funds Purchased [Member]
Other borrowed funds disclosures
Federal Funds purchased outstanding	$ 0	$ 0