Income Taxes (Tables)

12 Months Ended

Sep. 30, 2021

Income Taxes

Schedule of components of income taxes

	For the Fiscal Year Ended September 30,
	2021		2020		2019
Current provision (benefit):
Federal	$	95,818	$	(309,401)	$	—
State		9,911		481		1,749
Total current provision (benefit)		105,729		(308,920)		1,749
Deferred provision (benefit)
Federal		(754,995)		—		—
State		(438,517)		38		56
Total deferred provision (benefit)		(1,193,511)		38		56
Total current and deferred provision (benefit)	$	(1,087,783)	$	(308,882)	$	1,805

Schedule of reconciliation of the statutory federal rate to the Company's effective income tax rate

	For the Fiscal Year Ended September 30,
	2021		2020		2019
U.S. Federal statutory tax rate	21.00	%	21.00	%	21.0	%
Rate change due to tax reform	0.0	%	0.0	%	0.0	%
State income taxes, net of federal benefit	0.6	%	(2.2)	%	(0.9)	%
Permanent items	0.2	%	(6.3)	%	0.8	%
Research and development tax credits	(0.6)	%	(10.6)	%	(0.8)	%
Valuation allowance	(47.9)	%	(15.2)	%	(20.2)	%
Change in unrecognized tax benefits	(0.7)	%	2.2	%	0.2	%
Tax Law Changes: CARES Act	0.0	%	0.3	%	0.0	%
Other	0.0	%	0.3	%	0.0	%
Effective income tax rate	(27.4)	%	(10.4)	%	0.1	%

Schedule of deferred tax assets and liabilities

	As of September 30,
	2021		2020		2019
	Non Current		Non Current		Non Current
Deferred tax assets:
Reserves and accruals	$	654,624	$	698,233	$	690,148
Research and development credit		1,327,162		1,589,247		1,331,170
NOL carryforwards -fed/state		1,612,043		2,192,018		2,590,791
Depreciation				(807,522)		(826,724)
Stock options		41,652		5,296		348,624
		3,635,481		3,677,272		4,134,009
Less: Valuation allowance		(1,449,204)		(3,471,164)		(3,922,620)
Total deferred tax assets		2,186,277		206,108		211,389
Deferred tax liabilities:
Depreciation		(1,122,455)		(335,797)		(341,040)
Total deferred tax liabilities		(1,122,455)		(335,797)		(341,040)
Net deferred tax asset (liability)	$	1,063,822	$	(129,689)	$	(129,651)

Schedule of reconciliation of beginning and ending balances of total amounts of gross unrecognized tax benefits

	For the Fiscal Year Ended September 30,
	2021		2020		2019
Balance at beginning of year	$	615,000	$	546,000	$	540,000
Unrecognized tax benefits related to prior years		—		39,000		—
Unrecognized tax benefits related to current year		7,000		37,000		6,000
Decrease in unrecognized tax benefits due to the lapse of applicable statute of limitations		(32,000)		(7,000)		—
Balance at end of year	$	590,000	$	615,000	$	546,000