Derivative Liabilities (Details Textual) (USD $)	6 Months Ended	12 Months Ended		6 Months Ended				6 Months Ended
	Jan. 31, 2013	Jul. 31, 2012	Aug. 31, 2011	Jan. 31, 2013 Common Stock [Member]	Jan. 31, 2013 Warrant [Member]	Jan. 31, 2013 Series D Convertible Preferred Stock [Member]	Jul. 31, 2012 Series D Convertible Preferred Stock [Member]	Jan. 31, 2013 Revaluation Of Warrants [Member]	Jan. 31, 2012 Revaluation Of Warrants [Member]	Jul. 31, 2012 Revaluation Of Warrants [Member]
Derivative, Average Remaining Maturity								3 years 7 months 10 days
Derivative Instruments, Gain Recognized in Income								$ 3,783,290	$ 4,212,545
Derivative warrant liability fair value	624,797	1,811,746						6,127,098		4,081,627
Stock Repurchase Program, Number of Shares Authorized to be Repurchased						750
Preferred Stock, Dividend Rate, Percentage						9.00%
Convertible preferred stock, par value (in dollars per share)						$ 1,000	$ 1,000
Shares To Be Issued Upon Conversion Of Warrants				24,999,999
Convertible Preferred Stock Shares To Be Issued Upon Conversion				24,999,999
Convertible Stock Conversion Price Per Share	$ 0.03
Preferred Stock Additional Dividend Rate Percentage						3.00%
Preferred Stock, Dividend Payment Terms						The dividend is payable quarterly on September 30, December 31, March 31 and June 30, beginning on December 31, 2012 and on each conversion date in cash, or at the Company's option, in shares of common stock.
Preferred Stock Make Whole Payment						270
Late Fee Payment Rate On Unpaid Dividend						18.00%
Warrants Issued		(49,863,260)			270,594,093	24,999,999
Excercise Price Of Warrants	$ 0.03
Convertible Preferred Stock Liability	750,000
Legal Fees	25,000
Finders Fees	60,000
Amortization Period						12 months
Preferred Stock Make Whole Payment Accrued	202,500
Balance at July 31, 2012 - Derivative warrant liability			$ 8,745,508		$ 762,355