Quarterly report pursuant to sections 13 or 15(d)

Acquisition Obligation (Details)

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Acquisition Obligation (Details) (USD $)
3 Months Ended 9 Months Ended 63 Months Ended 1 Months Ended 1 Months Ended 1 Months Ended
Apr. 30, 2013
Apr. 30, 2012
Apr. 30, 2013
Apr. 30, 2012
Apr. 30, 2013
Mar. 24, 2012
Jun. 24, 2011
Mar. 31, 2012
First Amendment
Sep. 30, 2011
First Amendment
Sep. 28, 2011
First Amendment
Mar. 31, 2012
Second Amendment
Mar. 24, 2012
Second Amendment
Sep. 30, 2011
September 2011
First Amendment
Sep. 28, 2011
September 2011
First Amendment
Mar. 24, 2012
March 2012
Second Amendment
Acquisition obligation                              
Acquisition obligation, portion modified by amendment                           $ 750,000 $ 1,150,000
Acquisition obligation payment rescheduled to end of month when due                           100,000 150,000
Acquisition obligation payment rescheduled later date                           650,000 1,000,000
Number of days following the receipt of $5,000,000 when scheduled acquisition obligation payment will be due                         30 days    
Net proceeds from financings amount that will trigger payment of remaining balance within 30 days                           5,000,000  
Class Of Warrant (in shares)             12,000,000     1,000,000   3,000,000      
Incremental borrowing rate used to discount acquisition obligation (as a percent)     5.00%                        
Imputed interest discount     174,000           132,000   145,000        
Non-cash interest expense due to amendments 19,000 35,000 71,000 121,000                      
Non-cash interest expense, amortization of discount   39,000   115,000       113,000              
Short-term imputed interest discount 33,000   33,000   33,000                    
Loss on extinguishment of debt   (761,492)   (761,492) (761,492)           (761,492)        
Fair value of acquisition obligation           $ 2,504,178