Quarterly report pursuant to Section 13 or 15(d)

Cash and Cash Equivalents and Liquidity (Details)

v2.4.1.9
Cash and Cash Equivalents and Liquidity (Details) (USD $)
3 Months Ended 9 Months Ended 87 Months Ended
Apr. 30, 2015
Apr. 30, 2014
Apr. 30, 2015
Apr. 30, 2014
Apr. 30, 2015
Jul. 31, 2014
Jul. 31, 2013
Cash and Cash Equivalents and Liquidity              
Losses in all previous reporting periods from inception to date $ 5,987,345us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 3,816,844us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 14,666,698us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 8,468,760us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 40,000,000us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic    
Cash and cash equivalents $ 25,439,188us-gaap_CashAndCashEquivalentsAtCarryingValue $ 24,252,154us-gaap_CashAndCashEquivalentsAtCarryingValue $ 25,439,188us-gaap_CashAndCashEquivalentsAtCarryingValue $ 24,252,154us-gaap_CashAndCashEquivalentsAtCarryingValue $ 25,439,188us-gaap_CashAndCashEquivalentsAtCarryingValue $ 37,852,694us-gaap_CashAndCashEquivalentsAtCarryingValue $ 4,970,175us-gaap_CashAndCashEquivalentsAtCarryingValue