v3.19.3
Note 13 - Subsequent Events (Details Textual)
1 Months Ended 6 Months Ended 12 Months Ended
Aug. 02, 2019
Aug. 01, 2019
May 31, 2019
USD ($)
May 03, 2019
USD ($)
shares
Aug. 31, 2019
USD ($)
Jul. 31, 2019
USD ($)
May 31, 2019
USD ($)
Apr. 30, 2019
USD ($)
Jan. 31, 2019
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Jun. 20, 2019
USD ($)
Mar. 31, 2019
USD ($)
Mar. 31, 2018
USD ($)
Jan. 31, 2017
USD ($)
Nov. 24, 2015
Proceeds from issuance of convertible promissory notes - related party                   $ 3,996,000 $ 1,500,000 $ 4,500,000          
Majority Investors [Member]                                  
Debt Instrument, Interest Rate, Stated Percentage                       8.00%          
Majority Investors [Member] | First Note to Fund the Company's Operations [Member]                                  
Proceeds from Notes Payable, Total               $ 2,000,000                  
Majority Investors [Member] | Second Note to Fund the Company's Operations [Member]                                  
Proceeds from Notes Payable, Total     $ 500,000       $ 500,000                    
Majority Investors [Member] | Notes to Fund the Company's Operations [Member]                                  
Debt Instrument, Interest Rate, Stated Percentage     8.00%       8.00%                    
Oxford Finance, LLC [Member] | Term Loans [Member]                                  
Debt Instrument, Periodic Payment Terms, Increase (Decrease) in Balloon Payment to be Paid                             $ 200,000 $ 100,000  
Debt Instrument, Interest Rate, Stated Percentage                                 7.06%
Oxford Finance, LLC [Member] | Term Loans [Member] | Domain [Member]                                  
Debt Instrument, Increase of Periodic Payments Upon Delivery of Executed Term Sheet                 240 days                
Proceeds from Noncontrolling Interests                 $ 20,000,000                
Restricted Cash, Total                   $ 200,000              
Debt Instrument, Periodic Payment Terms, Increase (Decrease) in Balloon Payment to be Paid                 $ 50,000       $ 20,000        
Subsequent Event [Member]                                  
Merger Agreement, Percentage Ownership in Combined Company, Acquirer       86.00%                          
Merger Agreement, Percentage Ownership in Combined Company, Acquiree       14.00%                          
Subsequent Event [Member] | Minimum [Member]                                  
Proceeds From Issuance Or Sale Of Equity         $ 1,000,000                        
Subsequent Event [Member] | Reverse Stock Split [Member] | Minimum [Member]                                  
Stockholders' Equity Note, Stock Split, Conversion Ratio 2 2                              
Subsequent Event [Member] | Reverse Stock Split [Member] | Maximum [Member]                                  
Stockholders' Equity Note, Stock Split, Conversion Ratio 10 10                              
Subsequent Event [Member] | Conversion of Notes into Series B Convertible Preferred Stock [Member]                                  
Debt Conversion, Original Debt, Amount, Principal       $ 3,000,000                          
Debt Conversion, Original Debt, Amount, Cumulative Accrued Interest       $ 203,000                          
Subsequent Event [Member] | Conversion of Notes into Series B Convertible Preferred Stock [Member] | Series B Convertible Preferred Stock [Member]                                  
Debt Conversion, Converted Instrument, Shares Issued | shares       10,223,996                          
Subsequent Event [Member] | Domain [Member]                                  
Proceeds from issuance of convertible promissory notes - related party           $ 600,000                      
Debt Instrument, Interest Rate, Stated Percentage           8.00%                      
Subsequent Event [Member] | Majority Investors [Member] | First Note to Fund the Company's Operations [Member]                                  
Proceeds from Notes Payable, Total               $ 2,000,000                  
Debt Instrument, Maturity Date               Apr. 26, 2020                  
Subsequent Event [Member] | Majority Investors [Member] | Second Note to Fund the Company's Operations [Member]                                  
Proceeds from Notes Payable, Total             $ 500,000                    
Debt Instrument, Maturity Date             May 29, 2020                    
Subsequent Event [Member] | Majority Investors [Member] | Notes to Fund the Company's Operations [Member]                                  
Debt Instrument, Interest Rate, Stated Percentage     8.00%       8.00%                    
Subsequent Event [Member] | Oxford Finance, LLC [Member] | Term Loans [Member] | Domain [Member]                                  
Debt Instrument, Increase of Interest-Only Periodic Payments Upon Delivery of Executed Term Sheet                 60 days                
Debt Instrument, Increase of Periodic Payments Upon Delivery of Executed Term Sheet                 240 days                
Proceeds from Noncontrolling Interests                 $ 20,000,000                
Restricted Cash, Total                           $ 200,000      
Debt Instrument, Periodic Payment Terms, Increase (Decrease) in Balloon Payment to be Paid                 $ 50,000