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Securities Available for Sale (Details) (State and Municipal Obligations [Member], USD $)
Jul. 28, 2012
Jan. 31, 2012
State and Municipal Obligations [Member]
   
Fair value, amortized cost and gross unrealized gains and losses of the securities    
Amortized Cost $ 11,353,847 $ 11,313,013
Gross Unrealized Gains 13,262 22,933
Gross Unrealized Losses (721) (22)
Fair Value $ 11,366,388 $ 11,335,924