Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.2
Accounts Receivable and Concentration of Credit Risk (Narrative) (Details)
 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2020
USD ($)
customer
Jun. 30, 2019
customer
Jun. 30, 2020
USD ($)
customer
Jun. 30, 2019
customer
Sep. 30, 2019
USD ($)
customer
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    
Assets, Current [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Number of Customers     0   0
Accounts Receivable [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Concentration risk, percentage     76.00%   66.00%
Number of Customers     3   2
Total Revenue [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Concentration risk, percentage 72.00% 63.00% 74.00% 64.00%  
Number of Customers 3 3 3 3  
Brazil [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Credit terms     180 days    
Long term trade receivable | $ $ 800,000   $ 800,000   $ 300,000