Borrowings (Details Textual) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Borrowings
Repurchase Agreements	$ 423,414,000	$ 397,107,000
Securities Pledged for Repurchase Agreements	446,838,000	479,345,000
FHLB advances	394,131,000	$ 296,944,000
Lines of credit	255,000,000
FHLB Put Options
Borrowings
FHLB advances	$ 200,000,000
Minimum rate to exercise put option	8.00%
FHLB Advances, Due Date, Earliest	2016
FHLB Advances, Due Date, Last	2021
FHLB Advances, Interest Rate, Range from	2.73%
FHLB Advances, Interest Rate, Range to	3.43%

Minimum rate to exercise put option.

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- Definition

Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The earliest year of maturity for the advances from the Federal Home Loan Bank as of the Balance Sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
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The last year of maturity for the advances from the Federal Home Loan Bank as of the Balance Sheet date.

+ References

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States the lowest interest rate applicable to any of the advances from the Federal Home Loan Bank as of the Balance Sheet date.

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States the highest interest rate applicable to any of the advances from the Federal Home Loan Bank as of the Balance Sheet date.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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-Publisher FASB
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- Definition

The carrying amount as of the date of the latest financial statement presented of securities which are owned but transferred to serve as collateral for repurchase agreements, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party.

+ References

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Amount, before effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and elected not to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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