Quarterly report pursuant to Section 13 or 15(d)

Capital Structure - Common Stock (Details)

v3.19.3
Capital Structure - Common Stock (Details)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 04, 2019
day
Mar. 08, 2019
USD ($)
$ / shares
shares
Dec. 27, 2018
$ / shares
shares
Sep. 25, 2018
shares
Sep. 24, 2018
$ / shares
shares
Aug. 17, 2018
USD ($)
$ / shares
shares
Nov. 17, 2017
USD ($)
shares
Sep. 30, 2019
USD ($)
class_of_stock
$ / shares
shares
Dec. 31, 2018
$ / shares
shares
Sep. 30, 2018
shares
Sep. 30, 2019
USD ($)
class_of_stock
Vote
$ / shares
shares
Sep. 30, 2018
USD ($)
shares
Dec. 31, 2018
USD ($)
$ / shares
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Dec. 26, 2018
shares
Apr. 27, 2017
$ / shares
Dec. 31, 2014
shares
Common Stock                                
Number of classes of stock authorized to issue | class_of_stock               2     2          
Number of shares of capital stock authorized to issue (in shares)               205,000,000     205,000,000          
Common stock, shares authorized (in shares)               200,000,000 200,000,000   200,000,000   200,000,000      
Preferred stock, shares authorized (in shares)               5,000,000 5,000,000   5,000,000   5,000,000      
Common stock, par value (in dollars per share) | $ / shares         $ 0.001     $ 0.001 $ 0.001   $ 0.001   $ 0.001      
Number of shares available under warrant (in shares)     4,000,000                          
Exercise price per share (in dollars per share) | $ / shares     $ 12.50                          
Preferred stock, par value per share (in dollars per share) | $ / shares               $ 0.001 $ 0.001   $ 0.001   $ 0.001      
Warrants outstanding term     5 years 6 months                          
Number of redemption or sinking fund provisions | class_of_stock                     0          
Sale of stock (in shares)   363,637                            
Purchase price (in dollars per share) | $ / shares   $ 5.50                            
Proceeds from issuance of common stock | $                     $ 8,975,960 $ 0        
Common stock                                
Common Stock                                
Number of shares available under warrant (in shares)                               22,328
Issuance of stock (in shares)                     1,818,182 2,349,968        
Consideration issued (in shares)                   5,798,735   5,798,735        
Series B Preferred Stock | Preferred Stock                                
Common Stock                                
Preferred stock conversion ratio     5           5   5          
Number of shares available under warrant (in shares)                               625,208
Common Stock                                
Common Stock                                
Number of redemption or sinking fund provisions | class_of_stock                     0          
Number of votes per share | Vote                     1          
Number of preemptive, conversion or subscription rights | class_of_stock                     0          
Private Placement                                
Common Stock                                
Number of shares available under warrant (in shares)                 14,285,714       14,285,714      
Exercise price per share (in dollars per share) | $ / shares                 $ 0.40       $ 0.40      
Proceeds from warrant exercises | $                         $ 5,700,000      
Purchase price (in dollars per share) | $ / shares           $ 3.91                    
Proceeds from issuance or sale of equity | $           $ 3,900,000                    
Private Placement | Common stock                                
Common Stock                                
Issuance of stock (in shares)           1,000,000                    
Private Placement | Series A Preferred Stock | Preferred Stock                                
Common Stock                                
Preferred stock, shares authorized (in shares)                           2,857,143    
Private Placement | Series B Preferred Stock | Preferred Stock                                
Common Stock                                
Preferred stock, shares authorized (in shares)     2,857,143           2,857,143       2,857,143      
Preferred stock, par value per share (in dollars per share) | $ / shares     $ 2.00                       $ 2.00  
Bought Deal                                
Common Stock                                
Sale of stock (in shares)   1,818,182                            
Net proceeds | $   $ 9,000,000                            
Proceeds from issuance of common stock | $   $ 10,000,000                            
Armistice Purchase Agreement                                
Common Stock                                
Sale of stock (in shares)               1,200,000                
Net proceeds | $               $ 3,700,000                
Purchase price (in dollars per share) | $ / shares               $ 3.132     $ 3.132          
Trading days | day 5                              
TRx                                
Common Stock                                
Unregistered shares of common stock issued or issuable as part of acquisition | $             $ 8,100,000                  
Shares issued upon closing (in shares)             5,184,920                  
Contingent shares issuable as part of acquisition (in shares)             2,349,968                  
Ichorion                                
Common Stock                                
Consideration issued (in shares)       5,800,000 5,800,000                      
Incentive Warrants                                
Common Stock                                
Number of shares available under warrant (in shares)     4,000,000                          
Exercise price per share (in dollars per share) | $ / shares     $ 12.50                          
Warrants outstanding term     5 years 6 months                          
Fair value of incentive warrants | $                         $ 1,700,000