Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation (Details)

v3.20.1
Basis of Presentation (Details) - USD ($)
1 Months Ended 3 Months Ended 5 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
May 13, 2020
Apr. 01, 2020
Mar. 31, 2020
Mar. 19, 2020
Oct. 29, 2019
Jul. 12, 2018
Jun. 26, 2018
Jan. 14, 2014
Mar. 31, 2020
Nov. 30, 2018
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Mar. 31, 2019
Mar. 31, 2020
Dec. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Jun. 30, 2019
Sep. 30, 2018
Jun. 30, 2018
Jun. 20, 2018
Basis of Presentation [Line Items]                                            
Accumulated deficit     $ (146,882,000)           $ (146,882,000)   $ (146,882,000)       $ (146,882,000)   $ (146,882,000)   $ (105,821,000)      
Net Cash Used in Operating Activities                                 (9,478,000) $ (9,583,000)        
Cash     10,040,000           10,040,000   10,040,000     $ 9,037,000 10,040,000   10,040,000 9,037,000 4,421,000   $ 15,934,000  
Proceeds from exercise of warrants                             6,400,000   6,330,000 0        
Net proceeds from underwritten public offering         $ 4,500,000                                  
Stock Issued During Period, Value, New Issues             $ 16,000,000             0                
Shares of the common stock issued             4,350,000                              
Gross proceeds from issuance         $ 4,520,000                                  
Contract liabilities     $ 3,006,000           $ 3,006,000   3,006,000       $ 3,006,000   3,006,000   1,279,000      
Contract with Customer, Liability, Revenue Recognized                     $ 75,000           193,000          
Proceeds from capital contribution                   $ 2,500,000             $ 0 $ 2,459,000        
Term of agreement               5 years                            
Stock Issued During Period, Shares, Warrants Exercised                             29,100,000 14,999,998            
Lincoln Park 2020 Purchase Agreement                                            
Basis of Presentation [Line Items]                                            
Shares of the common stock issued     5,000,000 815,827         5,000,000               15,000,000          
Number of shares offered       1,000,000                                    
Gross proceeds from issuance     $ 5,766,000           $ 5,800,000               $ 15,700,000          
Authorized value of shares       $ 50,000,000                                    
Term of agreement       36 months                                    
CC-Pharming Ltd                                            
Basis of Presentation [Line Items]                                            
Contract with Customer, Liability                                       $ 2,900,000    
Contract with Customer, Liability, Revenue Recognized                                 147,000   $ 1,800,000      
Master Manufacturing Services and Supply Agreement ("MSA") | Lung Bio                                            
Basis of Presentation [Line Items]                                            
Advance received                         $ 1,600,000                  
Purchase of capital expenditure                         1,000,000                  
Related contracted services                         $ 620,000                  
Contract liabilities                       $ 1,600,000       $ 1,600,000            
Contract with Customer, Liability, Revenue Recognized                                 $ 46,000          
Over-Allotment Option [Member]                                            
Basis of Presentation [Line Items]                                            
Stock Issued During Period, Value, New Issues           $ 1,350,000                                
Shares of the common stock issued           1,500,000                                
Shares Issued, Price Per Share           $ 0.90                                
Number of shares offered             2,666,666                              
Gross proceeds from issuance           $ 1,350,000                                
Common Stock [Member]                                            
Basis of Presentation [Line Items]                                            
Stock Issued During Period, Value, New Issues                           $ 0                
Shares of the common stock issued         2,450,000   4,350,000             142,000                
Shares Issued, Price Per Share             $ 0.90                             $ 0.90
Stock Issued During Period, Shares, Warrants Exercised                     31,860,000 3,140,000                    
Series A Warrants [Member]                                            
Basis of Presentation [Line Items]                                            
Shares of the common stock issued         25,000,000                                  
Stock Issued During Period, Shares, Warrants Exercised                               3,300,000            
Series A Preferred Stock [Member]                                            
Basis of Presentation [Line Items]                                            
Shares of the common stock issued             6,300                              
Series B Preferred Stock [Member]                                            
Basis of Presentation [Line Items]                                            
Shares of the common stock issued             5,785                              
Shares Issued, Price Per Share         $ 0.20                                 $ 0.90
Subsequent event | Lincoln Park 2020 Purchase Agreement                                            
Basis of Presentation [Line Items]                                            
Shares of the common stock issued   10,000,000                                        
Gross proceeds from issuance   $ 9,962,600                                        
Subsequent event | Securities and Exchange Commission | Lincoln Park 2020 Purchase Agreement                                            
Basis of Presentation [Line Items]                                            
Stock Issued During Period, Value, New Issues $ 1,090,000                                          
Shares of the common stock issued 1,000,000                                          
Shares Issued, Price Per Share $ 1.09