Subordinated Debentures (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2003	Dec. 31, 2005
Subordinated Debentures 2003 [Member]
Subordinated Borrowing [Line Items]
Proceeds from Issuance of Debt			$ 8.2
Debt Instrument, Description of Variable Rate Basis		Interest accrues at LIBOR plus 2.85%
Subordinated Borrowing, Interest Rate	3.08%	3.09%
Debt Conversion, Original Debt, Due Date, Year			2034
Subordinated Debentures 2004 [Member]
Subordinated Borrowing [Line Items]
Proceeds from Issuance of Debt				8.2
Debt Instrument, Description of Variable Rate Basis				Interest accrues at LIBOR plus 1.34%.
Subordinated Borrowing, Interest Rate	1.58%	1.58%
Debt Conversion, Original Debt, Due Date, Year				2036
Subordinated Debentures 2005 [Member]
Subordinated Borrowing [Line Items]
Proceeds from Issuance of Debt		5.2
Debt Instrument, Description of Variable Rate Basis		Interest accrues at LIBOR plus 1.62%.
Subordinated Borrowing, Interest Rate	1.87%	1.87%
Debt Instrument, Interest Rate, Effective Percentage	5.75%	5.75%
Debt Conversion, Original Debt, Due Date, Year		2036