Current report filing

Note 7 - Share Capital (Details Textual)

v3.19.1
Note 7 - Share Capital (Details Textual) - USD ($)
 3 Months Ended 6 Months Ended 8 Months Ended 12 Months Ended 33 Months Ended
Jun. 08, 2018
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Dec. 31, 2017
Dec. 29, 2017
May 30, 2018
Mar. 28, 2018
Oct. 27, 2017
Apr. 02, 2015
Payments of Stock Issuance Costs   $ 2,000 $ 43,000 $ 7,000 $ 64,000              
Stock Issued During Period, Value, New Issues         8,204,000              
The 2018 ATM Offering [Member]                        
Stock Issuance Program, Authorized Amount                   $ 30,000,000    
Stock Issued During Period, Shares, New Issues   1,429,847   1,429,847                
Shares Issued, Price Per Share   $ 3.78   $ 3.78   $ 3.78            
Proceeds from Issuance of Common Stock   $ 5,410,000   $ 5,410,000                
Proceeds from Issuance of Common Stock, Net   $ 5,248,000 $ 5,248,000              
Stock Issuance, Percent of Cash Commission to Issuer   3.00%   3.00%   3.00%            
Stock Issued During Period, Value, New Issues       $ 5,246,000                
The 2017 Purchase Agreement [Member]                        
Stock Issuance Program, Authorized Amount                     $ 15,500,000  
Stock Issued During Period, Shares, New Issues       5,231,953     357,143          
Shares Issued, Price Per Share   $ 2.87   $ 2.87   $ 2.87            
Proceeds from Issuance of Common Stock, Net       $ 15,000,000                
Proceeds from Issuance of Private Placement           $ 15,500,000 $ 500,000          
Proceeds from Issuance of Private Placement, Net             $ 324,000          
Stock Issued During Period, Shares, Issued for Services             321,429          
Stock Issued During Period, Value, New Issues       $ 14,995,000                
The 2018 Purchase Agreement [Member]                        
Stock Issuance Program, Authorized Amount                 $ 20,000,000      
Stock Issued During Period, Shares, New Issues       170,261                
Stock Issued During Period, Value, New Issues       $ 600,000                
The 2018 Purchase Agreement [Member] | General and Administrative Expense [Member]                        
Payments of Stock Issuance Costs $ 600,000                      
ATM Offering [Member]                        
Stock Issuance Program, Authorized Amount                       $ 20,000,000
Stock Issued During Period, Shares, New Issues         7,472,618              
Shares Issued, Price Per Share     $ 1.14   $ 1.14              
Proceeds from Issuance of Common Stock         $ 8,500,000              
Proceeds from Issuance of Common Stock, Net   $ 4,571,000 $ 8,268,000              
Stock Issuance, Percent of Cash Commission to Issuer     3.00%   3.00%              
Stock Issued During Period, Value, New Issues               $ 20,000,000