General (Details) (USD $)				3 Months Ended
	Mar. 31, 2013 Branch	Oct. 16, 2012	Apr. 19, 2012	Mar. 31, 2013 New General Contractor Contract [Member]
Subsequent Event [Line Items]
Subsequent Event, Description				The Company is expanding the building of a current branch office.
Contract, Date				Apr. 19, 2012
Contractor contract fees		$ 12,200,000	$ 2,100,000
Contractor fees paid	4,500,000
Lower range of the expected cost of the project for next one to two years				13,000,000
Higher range of the expected cost of the project over the next one or two years				15,000,000
Number of branches consolidated	2
Maximum Un-depreciated value of furniture and equipment from the closed branch that needs to be redeployed or disposed	$ 30,000