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Income Taxes (Tables)

12 Months Ended

Sep. 30, 2018

Income Taxes

Schedule of components of income taxes

		For the Fiscal Year Ended September 30,
		2018			2017			2016
Current provision (benefit):
Federal		$	(3,440)		$	244,794		$	77,244
State			5,239			3,082			(2,930)
Total current provision (benefit)			1,799			247,876			74,314
Deferred provision (benefit):
Federal			61,799			—			493,989
State			53			44			27
Total deferred provision (benefit)			61,852			44			494,016
Total current and deferred provision (benefit)		$	63,651		$	247,920		$	568,330

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

		For the Fiscal Year Ended September 30,
		2018		2017		2016
U.S. Federal statutory tax rate		24.3	%	34.0	%	34.0	%
Rate change due to tax reform		(9.0)	%	—		—
State income taxes, net of federal benefit		1.9	%	(0.4)	%	0.2	%
Permanent items		(0.1)	%	0.2	%	(0.2)	%
Research and development tax credits		1.3	%	8.1	%	(12.6)	%
Valuation allowance		(20.3)	%	(35.9)	%	(2.9)	%
Change in unrecognized tax benefits		0.9	%	(0.9)	%	(0.1)	%
123R cancellations and forfeitures		(0.8)	%	0.1	%	3.8	%
Effective income tax rate		(1.8)	%	5.2	%	22.3	%

Schedule of deferred tax assets and liabilities

		As of September 30,
		2018			2017			2016
		Non Current			Non Current			Non Current
Deferred tax assets:
Reserves and accruals		$	730,015		$	1,275,427		$	2,539,117
Research and development credit			1,318,977		$	1,236,365		$	1,742,627
NOL carryforwards -fed/state			2,982,246		$	1,208,592		$	1,206,476
Depreciation			(863,796)		$	(690,774)		$	(725,018)
Stock options			345,608		$	609,016		$	603,881
			4,513,050			3,638,626			5,367,083
Less: Valuation allowance			(4,296,553)			(3,568,459)			(5,297,757)
Total deferred tax assets			216,497			70,167			69,326
Deferred tax liabilities:
Depreciation			(346,091)			(137,909)			(137,027)
Total deferred tax liabilities			(346,091)			(137,909)			(137,027)
Net deferred tax asset (liability)		$	(129,594)		$	(67,742)		$	(67,701)

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

		For the Fiscal Year Ended September 30,
		2018			2017			2016
Balance at beginning of year		$	570,000		$	615,000		$	615,000
Unrecognized tax benefits related to prior years			52,000			—			(2,000)
Unrecognized tax benefits related to current year			11,000			18,000			26,000
Decrease in unrecognized tax benefits due to the lapse of applicable statute of limitations			(93,000)			(63,000)			(24,000)
Balance at end of year		$	540,000		$	570,000		$	615,000

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Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

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Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

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Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

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Tabular disclosure of the change in unrecognized tax benefits.

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