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Liquidity (Details) - USD ($)
Jan. 31, 2016
Jul. 31, 2015
Jan. 31, 2015
Jul. 31, 2014
Jul. 31, 2013
Liquidity [Abstract]          
Accumulated deficit $ (102,570,000) $ (88,848,000)      
Cash and cash equivalents 6,706,000 1,321,000 $ 3,908,000 $ 1,321,000 $ 86,000
Accounts Payable, Current 582,000 $ 560,000      
Long term debt $ 0