Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.5.0.2
Subsequent Events - Additional Information (Detail) - USD ($)
 1 Months Ended 9 Months Ended
Oct. 31, 2016
Oct. 25, 2016
Sep. 30, 2016
Feb. 23, 2016
Sep. 30, 2016
Sep. 30, 2015
Jul. 31, 2016
Jul. 05, 2016
Mar. 17, 2014
Subsequent Event [Line Items]                  
Payments of Stock Issuance Costs         $ 49,000 $ 0      
Stock Issued During Period, Shares, New Issues       10,000          
Equity Method Investment, Ownership Percentage                 35.00%
National Holdings Corporation [Member] | Private Placement [Member]                  
Subsequent Event [Line Items]                  
Payments of Stock Issuance Costs     $ 1,200,000            
Percentage Of Placement Agent Fee     10.00%            
Percentage Of Shares Issued To Placement Agent     10.00%            
NSC Note [Member]                  
Subsequent Event [Line Items]                  
Long-term Debt, Gross             $ 3,600,000 $ 3,600,000  
Subsequent Event [Member]                  
Subsequent Event [Line Items]                  
Stock Issued During Period, Shares, New Issues   10,000              
Subsequent Event [Member] | Private Placement [Member] | Mustang Bio, Inc [Member]                  
Subsequent Event [Line Items]                  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights   2,500              
Class of Warrant or Right, Exercise Price of Warrants or Rights   $ 8.50              
Warrant Purchase Price Per Unit   $ 65,000              
Warrant Expiration Term   5 years              
Warrants Issued   272,645              
Subsequent Event [Member] | National Holdings Corporation [Member] | Private Placement [Member]                  
Subsequent Event [Line Items]                  
Proceeds from Issuance of Private Placement   $ 7,100,000              
Payments of Stock Issuance Costs   $ 700,000              
Percentage Of Placement Agent Fee   10.00%              
Warrants Issued   109,058              
Percentage Of Shares Issued To Placement Agent   10.00%              
Subsequent Event [Member] | University Of Texas Health Science Centerat Houston [Member] | Cellvation [Member]                  
Subsequent Event [Line Items]                  
Upfront fee $ 300,000                
Equity Method Investment, Ownership Percentage 5.00%                
Subsequent Event [Member] | NSC Note [Member]                  
Subsequent Event [Line Items]                  
Long-term Debt, Gross   $ 3,600,000              
Subsequent Event [Member] | Helocyte Convertible Note [Member] | Helocyte Inc [Member]                  
Subsequent Event [Line Items]                  
Proceeds from Issuance of Private Placement $ 1,000,000                
Payments of Stock Issuance Costs $ 100,000                
Warrants Issued   138,462