XML 85 R66.htm IDEA: XBRL DOCUMENT v3.20.1
Corporate Conversion and Equity - Additional Information (Details)
 12 Months Ended 18 Months Ended
Jun. 20, 2018
USD ($)
Unit
Dec. 31, 2019
USD ($)
$ / shares
shares
Dec. 31, 2018
$ / shares
shares
Dec. 31, 2017
USD ($)
$ / shares
shares
Dec. 31, 2019
USD ($)
Vote
$ / shares
shares
Jun. 30, 2018
$ / shares
Jun. 21, 2018
$ / shares
shares
Mar. 31, 2018
shares
Class of Stock [Line Items]                
Common stock, shares authorized   500,000,000 500,000,000   500,000,000   500,000,000  
Preferred stock, shares authorized   10,000,000 10,000,000   10,000,000   10,000,000  
Common stock, par value | $ / shares   $ 0.001 $ 0.001   $ 0.001   $ 0.001  
Preferred stock, par value | $ / shares   $ 0.001 $ 0.001   $ 0.001   $ 0.001  
Common stock, shares issued   29,835,183 29,450,035   29,835,183      
Preferred stock, shares issued   0 0   0   0  
Number of classes of units permitted for issuance | Unit 4              
Number of vote each member is entitled to for each unit held | Vote         1      
Warrants issued to purchase of stock               7,739,092
Financial Advisors                
Class of Stock [Line Items]                
Warrants to purchase common stock       101,119        
Exercise price of warrants | $ / shares       $ 12.60        
Purchasers of Bridge Notes                
Class of Stock [Line Items]                
Warrants to purchase common stock             429,948  
Exercise price of warrants | $ / shares             $ 12.60  
Series A Preferred Units                
Class of Stock [Line Items]                
Accrued and unpaid preferred return payable | $   $ 3,600,000     $ 3,600,000      
Total convertible preferred units | $ $ 54,923,430     $ 53,518,463        
Preferred return percentage   4.00%            
Reduction in preferred return percentage   2.00%            
Stock split, conversion ratio   0.05556            
Warrants issued to purchase of stock     0          
Series A Preferred Units | December 2015 Term Loan | Financial Advisors                
Class of Stock [Line Items]                
Warrants issued to purchase of stock     221,766          
Series B Preferred Units                
Class of Stock [Line Items]                
Total convertible preferred units | $       68,755,544        
Stock split, conversion ratio   0.05556            
Series B Preferred Units | Purchase Agreement                
Class of Stock [Line Items]                
Proceeds from issuance of preferred stock | $       46,911,300        
Aggregate amount of bridge notes and related accrued and unpaid interest | $       73,630,210        
Aggregate amount of bridge notes and related accrued and unpaid interest | $       73,630,210        
Series B Preferred Units | Promissory Notes | Purchase Agreement                
Class of Stock [Line Items]                
Bridge note converted amount | $       $ 26,718,910        
Common Stock                
Class of Stock [Line Items]                
Units converted into common stock shares         23,470,035      
Preferred return payable upon public offering | $ $ 3,629,092              
Warrants issued to purchase of stock   35,452,084     35,452,084      
Exercise price of warrants | $ / shares   $ 1.25     $ 1.25      
Common Stock | Advisors                
Class of Stock [Line Items]                
Warrants issued to purchase of stock             2,724,549  
Warrants to purchase common stock             151,364  
Exercise price of warrants | $ / shares             $ 12.60  
Common Stock | Advisors | Exercise Price One                
Class of Stock [Line Items]                
Warrants issued to purchase of stock   2,724,549     2,724,549      
Exercise price of warrants | $ / shares   $ 0.70     $ 0.70      
Common Stock | Advisors | Exercise Price Two                
Class of Stock [Line Items]                
Warrants issued to purchase of stock   72,000     72,000      
Exercise price of warrants | $ / shares   $ 1.25     $ 1.25      
Common Stock | Profits Interests                
Class of Stock [Line Items]                
Units converted into common stock shares   1,345,231 1,345,231   1,345,231      
Options to purchase common stock shares   2,141,748            
Options to purchase common stock shares, exercise price | $ / shares   $ 15.00     $ 15.00      
Common Stock | Common Units                
Class of Stock [Line Items]                
Units converted into common stock shares         12,099,280      
Common Stock | Series A Preferred Units                
Class of Stock [Line Items]                
Units converted into common stock shares         4,181,856      
Common stock shares issued as payment in full for accrued and unpaid preferred return payable   241,939     241,939      
Common Stock | Series B Preferred Units                
Class of Stock [Line Items]                
Units converted into common stock shares         5,843,668      
IPO                
Class of Stock [Line Items]                
Common stock, shares issued             29,450,035  
IPO | Common Stock                
Class of Stock [Line Items]                
Options to purchase common stock shares, exercise price | $ / shares           $ 15.00    
IPO | Common Stock | Profits Interests                
Class of Stock [Line Items]                
Units converted into common stock shares   62,765,605            
IPO | Common Stock | Series A Warrants                
Class of Stock [Line Items]                
Warrants to purchase common stock     12,321          
Exercise price of warrants | $ / shares     $ 15.30