Quarterly report pursuant to Section 13 or 15(d)

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

v3.22.2
Accounts Receivable and Concentration of Credit Risk (Narrative) (Details)
 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2022
USD ($)
customer
Jun. 30, 2021
customer
Jun. 30, 2022
USD ($)
customer
Jun. 30, 2021
USD ($)
customer
Sep. 30, 2021
customer
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Change in allowance for doubtful accounts | $     $ 0 $ 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    
Current Accounts Receivable [Member] | Customer Concentration Risk [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Number of customers     0   0
Accounts Receivable And Long-Term Trade Receivables [Member] | Customer Concentration Risk [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Number of customers     2    
Accounts Receivable And Long-Term Trade Receivables [Member] | Customer Concentration Risk [Member] | Three Customers [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Concentration risk, percentage     88.00%    
Accounts Receivable [Member] | Customer Concentration Risk [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Number of customers         3
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Three Customers [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Concentration risk, percentage         90.00%
Total Revenue [Member] | Customer Concentration Risk [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Number of customers 3 2 2    
Total Revenue [Member] | Customer Concentration Risk [Member] | Three Customers [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Concentration risk, percentage   75.00%      
Total Revenue [Member] | Customer Concentration Risk [Member] | Two Customers [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Concentration risk, percentage 92.00%   78.00% 71.00%  
Number of customers       2  
Brazil [Member]          
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Credit terms     90 days    
Long term trade receivable | $ $ 1,400,000   $ 1,400,000