Quarterly report pursuant to Section 13 or 15(d)

Capital Structure - Common Stock (Details)

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Capital Structure - Common Stock (Details)
9 Months Ended
Sep. 25, 2018
shares
Sep. 24, 2018
$ / shares
shares
Aug. 17, 2018
USD ($)
$ / shares
shares
Nov. 17, 2017
USD ($)
shares
Apr. 27, 2017
USD ($)
$ / shares
shares
Sep. 30, 2018
USD ($)
Vote
class_of_stock
$ / shares
shares
Sep. 30, 2017
USD ($)
Dec. 31, 2017
$ / shares
shares
Jul. 06, 2017
shares
Jun. 30, 2017
$ / shares
shares
Common Stock                    
Number of classes of stock authorized to issue | class_of_stock           2        
Number of shares of capital stock authorized to issue (in shares)           205,000,000        
Common stock, shares authorized (in shares)           200,000,000   200,000,000    
Preferred stock, shares authorized (in shares)           5,000,000   5,000,000    
Common stock, par value (in dollars per share) | $ / shares   $ 0.001 $ 0.001     $ 0.001   $ 0.001    
Preferred stock, par value per share (in dollars per share) | $ / shares           $ 0.001   $ 0.001    
Number of shares sold under purchase agreement (in shares)           40,679,634   31,266,989    
Proceeds from issuance of common stock | $           $ 0 $ 1,693,498      
Common Stock                    
Common Stock                    
Number of votes per share | Vote           1        
Number of preemptive, conversion or subscription rights | class_of_stock           0        
Number of redemption or sinking fund provisions | class_of_stock           0        
Private Placement                    
Common Stock                    
Convertible preferred stock conversion price (in dollars per share) | $ / shares                   $ 0.35
Purchase price (in dollars per share) | $ / shares     $ 3.91   $ 0.35          
Proceeds from issuance or sale of equity | $     $ 3,900,000   $ 4,650,000          
Gross proceeds | $         $ 5,000,000          
Number of shares available under warrant (in shares)         14,285,714          
Exercise price per share (in dollars per share) | $ / shares         $ 0.40          
Private Placement | Common stock                    
Common Stock                    
Convertible preferred stock shares authorized (in shares)                 11,940,000 11,940,000
Issuance of stock (in shares)     1,000,000   2,345,714          
Percentage of outstanding shares issued         19.99%          
Private Placement | Series A Preferred Stock | Preferred Stock                    
Common Stock                    
Preferred stock, shares authorized (in shares)         4,179         4,179
Preferred stock, par value per share (in dollars per share) | $ / shares         $ 1,000         $ 1,000
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