Quarterly report pursuant to sections 13 or 15(d)

Acquisition Obligation (Details)

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Acquisition Obligation (Details) (USD $)
3 Months Ended 57 Months Ended 1 Months Ended 1 Months Ended 1 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Oct. 31, 2012
Mar. 28, 2012
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)       31,000,000   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 27,000 52,000                        
Non-cash interest expense, amortization of discount   17,000         113,000              
Short-term imputed interest discounts 68,000 96,000 68,000                      
Long-term imputed interest discounts 8,000 26,000 8,000                      
Loss on extinguishment of debt     761,492             761,492        
Fair value of acquisition obligation         $ 2,504,178