Liquidity (Details) (USD $)	Oct. 31, 2014	Jul. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Jul. 31, 2012
Liquidity [Abstract]
Accumulated deficit	$ 83,155,000	$ 81,221,000		$ 70,171,000
Cash and cash equivalents	5,331,000	86,000	1,068,000	32,000	877,000
Liabilities, Current	875,000us-gaap_LiabilitiesCurrent	1,829,000us-gaap_LiabilitiesCurrent		2,153,000us-gaap_LiabilitiesCurrent
Long term debt	$ 0us-gaap_LongTermDebt	$ 0us-gaap_LongTermDebt

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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