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