Quarterly report pursuant to Section 13 or 15(d)

Investment in Macrophage Therapeutics, Inc. (Details)

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Investment in Macrophage Therapeutics, Inc. (Details) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
Mar. 11, 2015
Mar. 31, 2015
Jun. 30, 2015
Mar. 31, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Class of Stock [Line Items]                
Derivative liabilities     $ 63,000     $ 63,000   $ 0
Deemed dividend on beneficial conversion feature of MT Preferred Stock     0   $ 0 (46,000) $ 0  
Minimum required proceeds from initial public offering           $ 50,000,000    
Weighted average price per share           80.00%    
Convertible Preferred Stock                
Class of Stock [Line Items]                
Preferred stock authorized   50   50        
Purchase price per share (USD per share)   $ 50,000   $ 50,000        
Percentage of preferred stock reserved   40.00%   40.00%        
Proceeds from issuance of convertible preferred stock and warrants $ 500,000              
Deemed dividend on beneficial conversion feature of MT Preferred Stock   $ 46,000            
Value of warrants           $ 2,000,000    
Put option fair value           113,000    
Common stock value     $ 50,000     $ 50,000    
Common Stock                
Class of Stock [Line Items]                
Price per share     $ 3.00     $ 3.00    
Macrophage Therapeutics | Convertible Preferred Stock                
Class of Stock [Line Items]                
Preferred stock authorized   50   50        
Preferred shares, per unit       1        
Preferred stock issued 10              
Deemed dividend on beneficial conversion feature of MT Preferred Stock   $ 46,000            
Preferred stock value     $ 58,320     $ 58,320    
Macrophage Therapeutics | Common Stock                
Class of Stock [Line Items]                
Shares authorized upon exercise of warrants   1,500   1,500        
Common stock warrants, per unit       30        
Common stock as percentage of common equity   1.00%   1.00%        
Number of shares underlying warrant issued 300   300     300