Stock Options, ESOP, and Restricted Shares (Details Textual) (USD $)	1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 31, 2011	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Employee Benefits (Textual) [Abstract]
Share awarded of restricted stock to its officers and employees pursuant to the terms of the 2010 Plan		2,777,250
Employee Benefits (Additional Textual) [Abstract]
Vesting period for all options from the date of grant		5 years
Number of shares purchased under the Employee Stock Ownership Plan "ESOP"		222,180		222,180
Percentage of shares purchased from the number of shares issued under the Employee Stock Ownership Plan "ESOP"		8.00%
Tenure of loan		15 years
Interest percentage on Term Loan		3.25%
Total compensation expense		$ 0	$ 0
Number of years for participants to become vested in the allocated shares		4 years
Non-Vested options
Employee Benefits (Textual) [Abstract]
Maximum number of shares authorized to issue under 2010 Equity Incentive Plan		277,725
Maximum term of each option		10 years
Compensation expense recognized attributable to the shares that have been awarded		13,537	13,537
Restricted Stock
Employee Benefits (Textual) [Abstract]
Maximum number of shares authorized to issue under 2010 Equity Incentive Plan		111,090
Compensation expense recognized attributable to the shares that have been awarded		74,070	60,197
Share awarded of restricted stock to its officers and employees pursuant to the terms of the 2010 Plan	94,426			16,664
The closing price on the date of the grants issued	$ 12.75			$ 16.65
Non-Vested Options
Employee Benefits (Textual) [Abstract]
Total remaining compensation cost to be recognized on non-vested options		$ 135,376