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Subsequent Events (Details) - USD ($)
2 Months Ended 6 Months Ended
Jul. 28, 2017
Jul. 27, 2017
Sep. 30, 2017
Jun. 30, 2017
Jun. 30, 2016
Feb. 05, 2016
Subsequent Event [Line Items]            
Debt instrument, repayment of principal and unpaid interest       $ 2,427,362 $ 0  
Hercules Technology Growth Capital, Inc. and Hercules Technology III, L.P. [Member]            
Subsequent Event [Line Items]            
Warrants to purchase shares of common stock (in shares)           630,000
Warrants exercise price (in dollars per share)           $ 2.05
Hercules Technology Growth Capital, Inc. and Hercules Technology III, L.P. [Member] | Scenario, Forecast [Member]            
Subsequent Event [Line Items]            
Debt instrument, repayment of principal and unpaid interest     $ 5,000,000      
NantCell, Inc [Member]            
Subsequent Event [Line Items]            
Purchase of common stock       $ 13,000,000    
Subsequent Event [Member] | Hercules Technology Growth Capital, Inc. and Hercules Technology III, L.P. [Member]            
Subsequent Event [Line Items]            
Debt instrument, repayment of principal and unpaid interest $ 5,000,000 $ 5,000,000        
Prepayment charge $ 100,000          
Percentage of stock issuable upon exercise of the warrants   80.00%        
Number of days to calculate volume-weighted average price of common stock   30 days        
Subsequent Event [Member] | NantCell, Inc [Member]            
Subsequent Event [Line Items]            
Warrants exercise price (in dollars per share)   $ 1.10        
Purchase of common stock   $ 13,000,000        
Common stock, share price (in dollars per share)   $ 1.10        
Percentage of common stock premium at market price   92.00%        
Subsequent Event [Member] | NantCell, Inc [Member] | Maximum [Member]            
Subsequent Event [Line Items]            
Warrants to purchase shares of common stock (in shares)   3,000,000        
Milestone payment received   $ 343,000,000