Other Borrowed Funds (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Other borrowed funds disclosures
Borrowings outstanding	$ 20,335,000us-gaap_ShortTermBorrowings	$ 52,191,000us-gaap_ShortTermBorrowings
Federal Home Loan Bank Advances [Member]
Other borrowed funds disclosures
Total borrowing capacity available	483,800,000	367,200,000
Borrowings outstanding	7,323,000	47,586,000
Average interest rate of outstanding balances	0.83%	0.25%
Federal Reserve Bank Advances [Member]
Other borrowed funds disclosures
Borrowings outstanding	0	0
Available borrowing capacity	367,000,000	377,300,000
Securities Sold under Agreements to Repurchase [Member]
Other borrowed funds disclosures
Borrowings outstanding	13,012,000	4,605,000
Federal Funds Purchased [Member]
Other borrowed funds disclosures
Federal Funds purchased outstanding	$ 0	$ 0

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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Amount of short term borrowing where a bank borrows, at the federal funds rate, from another bank.

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The calculated weighted average interest rate for Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

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Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB).

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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