Quarterly report pursuant to Section 13 or 15(d)

Financial instruments (Details)

v3.19.3
Financial instruments (Details)
9 Months Ended
Sep. 30, 2019
USD ($)
item
Sep. 30, 2019
$ / shares
Sep. 30, 2019
USD ($)
Dec. 31, 2018
USD ($)
Financial Instruments        
Cash, insured amount     $ 700,000  
Current financial liabilities     7,768,000 $ 7,482,000
Sales agreement maximum sales proceeds of stock issuance and sales $ 10,000,000      
Share Price | $ / shares   $ 0.81    
Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Change In Basis Points | item 100      
Credit Concentration Risk        
Financial Instruments        
Cash, uninsured amount     $ 10,100,000  
Minimum        
Financial Instruments        
Financial Liabilities Trade Terms Period 30 days      
Minimum | Credit Availability Concentration Risk        
Financial Instruments        
Debt Instrument, Term 3 years 6 months      
Maximum        
Financial Instruments        
Financial Liabilities Trade Terms Period 60 days