Annual report pursuant to Section 13 and 15(d)

Accounts Receivable and Concentration of Credit Risk (Narrative) (Details)

v3.20.2
Accounts Receivable and Concentration of Credit Risk (Narrative) (Details)
 12 Months Ended
Sep. 30, 2020
USD ($)
customer
Sep. 30, 2019
USD ($)
customer
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Long term trade receivable | $ $ 0  
Minimum [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Credit terms 30 days  
Maximum [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Credit terms 120 days  
Accounts Receivable [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Concentration risk, percentage 89.00% 66.00%
Number of Customers | customer 3 2
Total Revenue [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Concentration risk, percentage 76.00% 64.00%
Number of Customers | customer 3 3
Brazil [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Credit terms 180 days  
Long term trade receivable | $   $ 300,000