Annual report pursuant to Section 13 and 15(d)

Shareholders' Equity - Preferred Stock - Additional Information (Detail)

v3.19.1
Shareholders' Equity - Preferred Stock - Additional Information (Detail)
 12 Months Ended
May 10, 2019
Jul. 17, 2018
USD ($)
$ / shares
shares
Apr. 06, 2018
$ / shares
shares
Nov. 08, 2017
USD ($)
Investor
$ / shares
shares
Jul. 25, 2017
USD ($)
shares
$ / shares
May 10, 2017
USD ($)
Investor
$ / shares
shares
Dec. 31, 2018
USD ($)
$ / shares
shares
Dec. 31, 2017
shares
Dec. 31, 2016
shares
Class of Stock [Line Items]                  
Number of accredited investors | Investor           3      
Term of warrants     5 years            
Warrants exercise price per share | $ / shares     $ 2.00            
Non-exercisable term of warrants     6 months            
Preferred stock, shares authorized             50,000,000 50,000,000 20,000,000
Proceeds from public offering | $   $ 13,800,000         $ 13,800,000    
Share price per unit | $ / shares     $ 2.00            
Shares of stock issued during period     900,000            
Warrants granted   13,800,000 900,000            
Increase decrease in common stock   4.99%              
Notice Period   61 days              
Warrants Outstanding             7,371,925    
Number of stock options outstanding             1,812,133 260,633 162,153
Total number of outstanding common shares if all warrant and stock options were exercised             40,878,896    
Capital Unit, Class A [Member]                  
Class of Stock [Line Items]                  
Warrants exercise price per share | $ / shares   $ 1.00              
Share price per unit | $ / shares   $ 1.00              
Number of common shares issued with each capital unit   1              
Common stock warrants term   7 years              
Number of warrants issued with each capital unit   1              
Capital Unit, Class B [Member]                  
Class of Stock [Line Items]                  
Share price per unit | $ / shares   $ 1.00              
Intrexon [Member] | Unsecured Non-convertible Promissory Note [Member]                  
Class of Stock [Line Items]                  
Debt instrument, face amount | $       $ 2,400,000   $ 2,400,000      
Debt instrument, accrued interest | $       $ 3,400,000          
Common Stock [Member]                  
Class of Stock [Line Items]                  
Proceeds from public offering | $   $ 2,300,000              
Share price per unit | $ / shares   $ 3.00              
Shares of stock issued during period   4,436,000         4,436,000    
Conversion price | $ / shares   $ 1.00              
Trading period   30 days              
Average trading volume for measurement | $   $ 175,000              
Maximum [Member]                  
Class of Stock [Line Items]                  
Increase decrease in common stock   9.99%              
Series A Preferred Stock [Member]                  
Class of Stock [Line Items]                  
Convertible into shares of common stock         1,200,000        
Fixed conversion price | $ / shares         $ 2.50        
Preferred stock, shares authorized           12,000,000      
Voting rights             No voting rights    
Preferred stock, shares outstanding             9,417,000 12,000,000  
Series A Preferred Stock [Member] | Maximum [Member]                  
Class of Stock [Line Items]                  
Gross proceed of preferred stock | $           $ 3,000,000      
Series B Preferred Stock [Member]                  
Class of Stock [Line Items]                  
Fixed conversion price | $ / shares       $ 2.50          
Preferred stock, shares authorized       6,600,000          
Voting rights             No voting rights    
Convertible into shares of common stock       1,320,000          
Convertible preferred stock, terms of conversion             Conversion of one share of Series B Preferred Stock into two shares of Common Stock.    
Share price per unit | $ / shares       $ 2.50          
Preferred stock, shares outstanding             6,600,000 6,600,000  
Series C Preferred Stock [Member]                  
Class of Stock [Line Items]                  
Preferred stock, shares authorized       1,000          
Preferred stock dividend rate       12.00%          
Preferred stock par/stated value per share | $ / shares             $ 33,847.9874    
Preferred stock, shares outstanding             101.733 100  
Series C Preferred Stock [Member] | Scenario, Forecast [Member]                  
Class of Stock [Line Items]                  
Preferred stock dividend rate 20.00%                
Series C Preferred Stock [Member] | Intrexon [Member]                  
Class of Stock [Line Items]                  
Total preferred stock issued       100          
Series D Preferred Stock [Member]                  
Class of Stock [Line Items]                  
Convertible into shares of common stock             9,364,000    
Proceeds from public offering | $   $ 5,000,000              
Shares of stock issued during period   9,364,000              
Total preferred stock issued   9,364,000              
Series D Preferred Stock [Member] | Capital Unit, Class B [Member]                  
Class of Stock [Line Items]                  
Shares of common stock callable by warrants issued   1              
Preferred stock par/stated value per share | $ / shares   $ 0.001              
Number of warrants issued with each capital unit   1              
Number of preferred shares issued with each capital unit   1              
Preferred Stock Issued Upon Initial Closing [Member] | Series A Preferred Stock [Member]                  
Class of Stock [Line Items]                  
Gross proceed of preferred stock | $           $ 1,302,000      
Shares of common stock callable by warrants issued           462,106      
Term of warrants           7 years      
Non-exercisable term of warrants           6 months      
Warrants exercise price per share | $ / shares           $ 3.10      
Preferred Stock Issued Upon Second Closing [Member] | Series A Preferred Stock [Member]                  
Class of Stock [Line Items]                  
Gross proceed of preferred stock | $         $ 1,698,000        
Shares of common stock callable by warrants issued         602,414        
Term of warrants         7 years        
Warrants exercise price per share | $ / shares         $ 3.10        
Non-exercisable term of warrants         6 months        
Private Placement [Member] | Series B Preferred Stock [Member]                  
Class of Stock [Line Items]                  
Number of accredited investors | Investor       4          
Gross proceed of preferred stock | $       $ 3,300,000          
Private Placement [Member] | Series B Preferred Stock [Member] | Fall 17 Warrant [Member]                  
Class of Stock [Line Items]                  
Shares of common stock callable by warrants issued       1,064,518          
Non-exercisable term of warrants       6 months          
Warrants exercise price per share | $ / shares       $ 3.10          
Term of warrants       7 years          
Underwriter [Member]                  
Class of Stock [Line Items]                  
Shares of stock issued during period   1,800,000              
Warrants granted   1,800,000