Annual report pursuant to Section 13 and 15(d)

Intangible Asset Acquisition and Cross License Agreement (Details)

v3.3.0.814
Intangible Asset Acquisition and Cross License Agreement (Details)
12 Months Ended
Mar. 24, 2011
USD ($)
Jul. 31, 2015
USD ($)
item
Jul. 31, 2014
USD ($)
Jul. 31, 2013
USD ($)
Mar. 28, 2011
USD ($)
Intangible Asset Acquisition and Cross License Agreement disclosures          
Scheduled payments to Inovio for assets accounted for as an asset acquisition $ 3,000,000        
Fees for sublicense, maximum (as a percent)   10.00%      
Royalty on net sales, maximum (as a percent)   1.50%      
Number of licensors of Inovio that Company will pay under the license | item   1      
Purchase price allocation of assets acquired          
Tangible assets - machinery, property and inventory, accounted for as an asset acquisition 38,000        
Intangible assets, relative fair value 2,962,000        
Discount $ 174,000 $ 174,000      
Weighted average remaining amortization period for patents 4 years        
Impairment charges   0 $ 0    
Research and development expense.          
Purchase price allocation of assets acquired          
Tangible assets - machinery, property and inventory, accounted for as an asset acquisition         $ 38,000
Patents          
Purchase price allocation of assets acquired          
Intangible assets, estimated fair value   2,962,000      
Accumulated amortization     2,788,000    
Amortization expense   465,000 $ 697,000 $ 697,000  
Asset purchase of SECTA technology accounted for as an asset acquisition          
Intangible Asset Acquisition and Cross License Agreement disclosures          
Consideration received   $ 0