Quarterly report pursuant to sections 13 or 15(d)

Cash and Cash Equivalents and Liquidity (Details)

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Cash and Cash Equivalents and Liquidity (Details) (USD $)
3 Months Ended 6 Months Ended 12 Months Ended 72 Months Ended
Jan. 31, 2014
Jan. 31, 2013
Jan. 31, 2014
Jan. 31, 2013
Jul. 31, 2008
Jul. 31, 2013
Jul. 31, 2012
Jul. 31, 2011
Jul. 31, 2010
Jul. 31, 2009
Jan. 31, 2014
Cash and Cash Equivalents and Liquidity                      
Losses in all previous reporting periods from inception to date $ 2,600,429 $ 1,621,988 $ 4,651,915 $ 3,648,913 $ 7,187 $ 7,150,187 $ 2,364,852 $ 3,758,817 $ 36,158 $ 33,714 $ 18,002,830
Cash and cash equivalents $ 18,450,070 $ 8,982,142 $ 18,450,070 $ 8,982,142   $ 4,970,175 $ 5,141,509       $ 18,450,070