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Convertible Debt (Details) (Convertible Debt Securities, 6% Non-negotiable Debentures, USD $)
1 Months Ended 1 Months Ended
May 31, 2011
Jan. 31, 2012
May 31, 2005
May 31, 2005
Common Stock
Debt Instrument [Line Items]        
Stated interest on convetible debentures     6.00%  
Aggregate face value of the convertible debentures     $ 36,000  
Outstanding principal on debentures convertible into number of shares       959,663
Conversion of outstanding principal on the debentures to shares 959,663      
Outstanding principal and accrued interest on debentures   $ 0