Summary of Significant Accounting Policies (Tables)

12 Months Ended

Sep. 30, 2021

Summary of Significant Accounting Policies

Schedule of inventories

	September 30,		September 30,
	2021		2020
Raw materials	$	3,729,692	$	3,378,246
Work-in-process		629,814		656,382
Finished goods		185,886		256,707
	$	4,545,392	$	4,291,335

Summary of contract assets and contract liabilities balances

	Contract
	Liabilities
September 30, 2020	$	313,365
Performance obligations satisfied during the period that were included in the contract liability balance at the beginning of the period		(305,494)
Increases due to invoicing prior to satisfaction of performance obligations		409,633
September 30, 2021	$	417,504

Schedule of customer service revenue and cost of sales

	For the Fiscal Year Ended September 30,
	2021		2020		2019
Customer Service Sales	$	4,034,294	$	4,265,086	$	3,553,919
Customer Service Cost of Sales		1,489,942		1,457,995		1,374,227
Gross Profit	$	2,544,352	$	2,807,091	$	2,179,692

Schedule of financial assets and liabilities accounted for at fair value on a recurring basis

	Fair Value Measurement on September 30,  2021
	Quoted Price in		Significant Other		Significant
	Active Markets for		Observable		Unobservable
	Identical Assets		Inputs		Inputs
	(Level 1)		(Level 2)		(Level 3)
Assets
Cash and cash equivalents:
Money market funds	$	6,051,902	$	—	$	—

	Fair Value Measurement on September 30,  2020
	Quoted Price in		Significant Other		Significant
	Active Markets for		Observable		Unobservable
	Identical Assets		Inputs		Inputs
	(Level 1)		(Level 2)		(Level 3)
Assets
Cash and cash equivalents:
Money market funds	$	11,607,293	$	—	$	—