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Summary of Operations and Significant Accounting Policies - Concentrations of Credit Risk - Additional Information (Details) - Accounts Receivable - Customer Concentration Risk	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Customer One
Concentration Risk [Line Items]
Concentration risk, percentage	11.00%	15.00%
Customer Two
Concentration Risk [Line Items]
Concentration risk, percentage	10.00%

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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