Annual report pursuant to Section 13 and 15(d)

Financial instruments (Details)

v3.10.0.1
Financial instruments (Details)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Sep. 25, 2018
$ / shares
shares
Feb. 29, 2016
USD ($)
Dec. 31, 2018
USD ($)
item
shares
Dec. 31, 2017
USD ($)
$ / shares
shares
Dec. 31, 2016
USD ($)
shares
Dec. 31, 2018
$ / shares
Dec. 31, 2018
USD ($)
Financial Instruments              
Cash, insured amount             $ 700
Cash, uninsured amount             13,700
Common shares issued for cash, net of issue costs (in shares) | shares       1,536,169      
Common shares issued value     $ 7,399 $ 1,076 $ 5,684    
Stock issuance costs   $ 800 $ 902 $ 93 $ 884    
Share Price | (per share) $ 0.82     $ 0.76   $ 0.89  
Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Change In Basis Points | item     100        
Credit Availability Concentration Risk              
Financial Instruments              
Accounts Payable, Trade, Current             1,000
Interest Rate Risk              
Financial Instruments              
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Discount Rate             100
Minimum              
Financial Instruments              
Financial Liabilities Trade Terms Period     30 days        
Minimum | Credit Availability Concentration Risk              
Financial Instruments              
Debt Instrument, Term     0 years        
Financial Liabilities Trade Terms Period     30 days        
Maximum              
Financial Instruments              
Financial Liabilities Trade Terms Period     60 days        
Maximum | Credit Availability Concentration Risk              
Financial Instruments              
Debt Instrument, Term     5 years        
Financial Liabilities Trade Terms Period     60 days        
Maximum | Currency Risk              
Financial Instruments              
Foreign Currency Cash And Cash Equivalents At Carrying Value             $ 200
Capital Stock              
Financial Instruments              
Common shares issued for cash, net of issue costs (in shares) | shares 12,195,122   12,195,122 1,536,169 13,085,979    
Common shares issued value     $ 7,399 $ 1,076 $ 5,684