Participation in the Small Business Lending Fund (SBLF) of the U.S. Treasury Department (U.S. Treasury) (Details Textual) (USD $)	1 Months Ended	3 Months Ended	12 Months Ended	1 Months Ended
	Aug. 18, 2011	Mar. 31, 2015	Dec. 31, 2014	Sep. 17, 2013
Non-Cumulative Perpetual Series B Preferred Stock Issued, Shares Pursuant To U.S. Treasury's Small Business Lending Fund Program (in shares)	10,000
Preferred Stock, Dividend Rate, Percentage		2.00%	2.00%
Preferred Stock, Redemption Terms		The Corporation may redeem the shares of Series B Preferred Stock, in whole or in part, at any time at a redemption price equal to the sum of the liquidation amount and the per-share amount of any unpaid dividends for the then-current period, subject to any required prior approval by the Corporation’s primary federal banking regulator. If redeemed in part, payments are required to be at least 25% of the original issuance.
Treasury Stock, Shares		102,017	102,017
Two year from January 1 2014 [Member]
Preferred Stock, Dividend Rate, Percentage		2.00%
Maximum [Member]
Preferred Stock, Dividend Rate, Percentage		5.00%
Minimum [Member]
Preferred Stock, Dividend Rate, Percentage		1.00%
Series B Non Cumulative Preferred Stock [Member]
Preferred Stock, Dividend Rate, Percentage		5.00%
Preferred Stock Redemption Shares				5,000
Preferred Stock Redemption Percentage				50.00%
Preferred Stock, Redemption Amount				$ 5,000,000
Preferred Stock, Liquidation Preference Per Share	1,000
Proceeds from Issuance or Sale of Equity, Total	10,000,000
Treasury Stock, Shares				5,000
Preferred Stock, Liquidation Preference, Value		5,000,000	5,000,000	$ 5,000,000
Series B Non Cumulative Preferred Stock [Member] | Four and half years from January 1, 2016 [Member]
Preferred Stock, Dividend Rate, Percentage		9.00%