Quarterly report pursuant to Section 13 or 15(d)

Development Awards and Deferred Revenue (Details Narrative)

v3.19.3
Development Awards and Deferred Revenue (Details Narrative) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Jan. 26, 2018
Apr. 20, 2015
Apr. 20, 2015
May 31, 2019
Apr. 30, 2019
Mar. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Sep. 30, 2018
Sep. 30, 2017
Jun. 30, 2019
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Dec. 31, 2017
Development Award [Line Items]                              
Revenue recognized                       $ (6,570,048)      
Revenue             $ 2,589,783   $ 1,090,878     33,570,048 $ 2,894,966    
Additional paid in capital, fair value of warrant issued                         6,215,225    
Cystic Fibrosis Foundation [Member]                              
Development Award [Line Items]                              
Payments for royalty       $ 2,700,000                      
Collaboration and License Agreement [Member] | Kaken Pharmaceutical Co., Ltd. [Member]                              
Development Award [Line Items]                              
Upfront payment, received from related party           $ 27,000,000                  
Consideration receivable on milestone payments           $ 173,000,000                  
Royalty term description           The period beginning on the date of the first commercial sale of the Licensed Product in Japan and ends on the latest of (i) the expiration of the last valid claim of the royalty patents covering such Licensed Product in Japan, (ii) the expiration of regulatory exclusivity for such Licensed Product for such Initial Indication in Japan, or (iii) ten (10) years after the first commercial sale of such Licensed Product for such Initial Indication in Japan. The Agreement may be terminated by either party for material breach, upon a party's insolvency or bankruptcy or upon a challenge by one party of any patents of the other party, and Kaken may terminate in specified situations, including for a safety concern or clinical failure, or at its convenience following the second anniversary of the first commercial sale of a Licensed Product in either of the Initial Indications in the Territory, with 180 days' notice                  
Revenue from related parties, recorded as deferred revenue           $ 27,000,000                  
Revenue recognized               $ 27,000,000              
Royalty payable       $ 2,700,000                      
Cystic Fibrosis Program Related Investment Agreement [Member] | Phase 2b Clinical Trial [Member]                              
Development Award [Line Items]                              
Proceeds from investments on achieving milestones         $ 5,000,000           $ 17,500,000        
Cystic Fibrosis Program Related Investment Agreement [Member] | Maximum [Member]                              
Development Award [Line Items]                              
Development award received $ 25,000,000                            
Collaboration Agreement [Member] | Cystic Fibrosis Foundation [Member]                              
Development Award [Line Items]                              
Royalty payment percentage 10.00%                            
Investment Agreement [Member] | 2018 CFF Award [Member]                              
Development Award [Line Items]                              
Revenue             $ 2,589,783   $ 1,090,878     $ 6,570,048 $ 2,894,966    
Investment Agreement [Member] | CFF Warrant [Member]                              
Development Award [Line Items]                              
Warrant to purchase of common stock             1,000,000         1,000,000      
Warrant exercisable price per share             $ 13.20         $ 13.20      
Warrants expiration term             Jan. 26, 2025         Jan. 26, 2025      
Investment Agreement [Member] | CFF Warrant [Member] | Immediately Exercisable Warrants [Member]                              
Development Award [Line Items]                              
Warrant to purchase of common stock             500,000         500,000      
Investment Agreement [Member] | CFF Warrant [Member] | Warrants Exercisable On Completion Of Final Milestone [Member]                              
Development Award [Line Items]                              
Warrant to purchase of common stock             500,000         500,000      
Investment Agreement [Member] | Cystic Fibrosis Foundation Warrants [Member]                              
Development Award [Line Items]                              
Revenue                           $ 17,500,000  
Additional paid in capital, fair value of warrant issued                       $ 6,215,225      
Revenue to be recognized             $ 18,784,775         $ 18,784,775      
Research and development period                           2 years 9 months  
2015 CFFT Award Agreement [Member]                              
Development Award [Line Items]                              
Revenue                           $ 2,440,195
Proceeds from investment award   $ 5,000,000                          
Cumulative effect of new accounting principle                            
Royalty payments, description     (i) a royalty payment equal to five times the amount the Company receives under the 2015 CFFT Award Agreement, up to $25 million, payable in three equal annual installments following the first commercial sale of lenabasum, the first of which is due within 90 days following the first commercial sale of lenabasum, (ii) a royalty payment to CFFT equal to the amount the Company receives under the 2015 CFFT Award Agreement, up to $5 million, due in the first calendar year in which the aggregate cumulative net sales of lenabasum in the Field of Use exceed $500 million, and (iii) royalty payment(s) to CFFT of up to approximately $15 million if the Company transfers, sells or licenses lenabasum in the Field of Use other than for certain clinical or development purposes, or if the Company enters into a change of control transaction, with such payment(s) to be credited against the royalty payments due upon commercialization.                        
2015 CFFT Award Agreement [Member] | First Commercial Sale [Member] | Lenabasum [Member]                              
Development Award [Line Items]                              
Payment due period after the first commercial sale     90 days                        
2015 CFFT Award Agreement [Member] | Upon Reaching the Sales Target [Member] | Lenabasum [Member]                              
Development Award [Line Items]                              
Royalty payment, sales target   500,000,000 $ 500,000,000                        
2015 CFFT Award Agreement [Member] | Maximum [Member]                              
Development Award [Line Items]                              
Development award received   5,000,000 5,000,000                        
2015 CFFT Award Agreement [Member] | Maximum [Member] | Upon Commercialization of the Product [Member] | Lenabasum [Member]                              
Development Award [Line Items]                              
Royalty payable   25,000,000 25,000,000                        
2015 CFFT Award Agreement [Member] | Maximum [Member] | Upon Reaching the Sales Target [Member] | Lenabasum [Member]                              
Development Award [Line Items]                              
Royalty payable   5,000,000 5,000,000                        
2015 CFFT Award Agreement [Member] | Maximum [Member] | Upon Transfer, Sale or Licensing [Member] | Lenabasum [Member]                              
Development Award [Line Items]                              
Royalty payable   $ 15,000,000 $ 15,000,000