Revenue Recognition- Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Sales	$ 62,160	$ 50,182
Unbilled revenue	2,488	590
Deferred revenue	$ 168	113
Contract liabilities, revenue recognized		100
Revenue Benchmark \| Customer Concentration Risk \| Largest Customer
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	18.00%
International Regions Excluding Central America and South America
Disaggregation of Revenue [Line Items]
Sales	$ 4,700	$ 1,900

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.

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