Quarterly report pursuant to Section 13 or 15(d)

Financial instruments (Details)

v3.7.0.1
Financial instruments (Details)
$ / shares in Units, lb in Thousands
 1 Months Ended 6 Months Ended
Jul. 31, 2017
lb
$ / lb
Jun. 30, 2017
USD ($)
item
shares
Jun. 30, 2017
CAD / shares
Jun. 30, 2017
USD ($)
$ / shares
Financial Instruments        
Cash, insured amount       $ 700,000
Accounts Payable, Trade, Current       $ 1,369,000
Sales agreement maximum sales proceeds of stock issuance and sales   $ 10,000,000    
Common shares issued for cash, net of issue costs (in shares) | shares   1,536,169    
Common shares issued value   $ 1,126,000    
Stock issuance costs   43,000    
Share Price | (per share)     CAD 0.82 $ 0.76
Proceeds from shares issued   $ 1,100,000    
Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Change In Basis Points | item   100    
Subsequent Event [Member]        
Financial Instruments        
Sale of Uranium in pounds | lb 109      
Sale of uranium, price per pound | $ / lb 35.35      
Purchase price of uranium sold, price per pound | $ / lb 20.15      
Current inventory of uranium, in pounds | lb 160      
Credit Concentration Risk        
Financial Instruments        
Cash, uninsured amount       $ 14,200,000
Minimum | Credit Availability Concentration Risk        
Financial Instruments        
Debt Instrument, Term   4 years    
Capital Stock        
Financial Instruments        
Common shares issued for cash, net of issue costs (in shares) | shares   1,536,169    
Common shares issued value   $ 1,126,000