Subsequent Events	12 Months Ended
Sep. 30, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsOn November 1, 2021, we entered into an Amendment to Lease (the “New Alhambra Lease Amendment”) to that certain Standard Industrial/Commercial Single-Tenant Lease – Net, dated as of October 1, 2017, by and between the Company and CHESTNUT2015 LLC (the “Alhambra Lease”), as previously amended by that certain Amendment to Lease, dated as of March 31, 2019 (the “Original Alhambra Lease Amendment”). Pursuant to the terms of the New Alhambra Lease Amendment, we agreed to extend the term of the lease for our corporate headquarters, manufacturing and research and development facilities located in Alhambra, California (the “Leased Facilities”) through September 30, 2031, with a five-year Company option to extend beyond such expiration date. Under the terms of the New Alhambra Lease Amendment, base rent for the Leased Facilities will remain unchanged from the rates of $51,500 per month during the fiscal year ending September 30, 2022 and $53,500 per month during the fiscal year ending September 30, 2023, in each case as previously agreed in the Original Alhambra Lease Amendment, and we continue to be responsible for certain other monthly expenses related to the Leased Facilities, including taxes and utilities. Base rent for the fiscal year ending September 30, 2024 will be based on a mutually determined fair market value, subject to the appraisal process set forth in New Alhambra Lease Amendment, which amount shall be at least 2% greater than the monthly rent paid during the fiscal year ending September 30, 2023. Monthly base rent for the fiscal year ending September 30, 2025 and each fiscal year thereafter during the term of the lease shall increase from the monthly rent payable in the immediately preceding fiscal year in an amount equal to the percentage increase, from the immediately preceding fiscal year, in the most recently published Consumer Price Index for All Urban Consumers, Los Angeles-Long Beach-Anaheim area, published by the Bureau of Labor Statistics of the U.S. Department of Labor.

Subsequent Events

12 Months Ended

Sep. 30, 2021

Subsequent EventsOn November 1, 2021, we entered into an Amendment to Lease (the “New Alhambra Lease Amendment”) to that certain Standard Industrial/Commercial Single-Tenant Lease – Net, dated as of October 1, 2017, by and between the Company and CHESTNUT2015 LLC (the “Alhambra Lease”), as previously amended by that certain Amendment to Lease, dated as of March 31, 2019 (the “Original Alhambra Lease Amendment”). Pursuant to the terms of the New Alhambra Lease Amendment, we agreed to extend the term of the lease for our corporate headquarters, manufacturing and research and development facilities located in Alhambra, California (the “Leased Facilities”) through September 30, 2031, with a five-year Company option to extend beyond such expiration date. Under the terms of the New Alhambra Lease Amendment, base rent for the Leased Facilities will remain unchanged from the rates of $51,500 per month during the fiscal year ending September 30, 2022 and $53,500 per month during the fiscal year ending September 30, 2023, in each case as previously agreed in the Original Alhambra Lease Amendment, and we continue to be responsible for certain other monthly expenses related to the Leased Facilities, including taxes and utilities. Base rent for the fiscal year ending September 30, 2024 will be based on a mutually determined fair market value, subject to the appraisal process set forth in New Alhambra Lease Amendment, which amount shall be at least 2% greater than the monthly rent paid during the fiscal year ending September 30, 2023. Monthly base rent for the fiscal year ending September 30, 2025 and each fiscal year thereafter during the term of the lease shall increase from the monthly rent payable in the immediately preceding fiscal year in an amount equal to the percentage increase, from the immediately preceding fiscal year, in the most recently published Consumer Price Index for All Urban Consumers, Los Angeles-Long Beach-Anaheim area, published by the Bureau of Labor Statistics of the U.S. Department of Labor.