Long-term Borrowings (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2015	Dec. 31, 2014
Debt Disclosure [Abstract]
Percentage of entity's assets equal to line of credit facility	30.00%
Collateral pledged under blanket floating lien agreement	$ 424,020
Long term advances with federal home loan bank [Abstract]
Advance Amount	$ 9,952	$ 9,935	[1]
Weighted Average Rate	2.98%	2.98%
Advances due, net of fair value discount	$ 48
Public deposit accounts	$ 132,451
November 2017 [Member]
Long term advances with federal home loan bank [Abstract]
Due by	Nov. 30, 2017	Nov. 30, 2017
Advance Amount	$ 9,952	$ 9,935
Weighted Average Rate	2.98%	2.98%
Federal Home Loan Bank Advances [Member]
Long term advances with federal home loan bank [Abstract]
Outstanding letters of credit	$ 70,000
US government and agency securities [Member]
Long term advances with federal home loan bank [Abstract]
Outstanding letters of credit	$ 132,653

[1] Derived from audited consolidated financial statements.