Income Taxes (Details) - USD ($)			12 Months Ended
	Jan. 01, 2018	Dec. 22, 2017	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Current provision (benefit):
Federal				$ (3,440)	$ 244,794
State			$ 1,749	5,239	3,082
Total current provision			1,749	1,799	247,876
Deferred provision (benefit):
Federal				61,799
State			56	53	44
Total deferred provision			56	61,852	44
Total current and deferred provision			$ 1,805	$ 63,651	$ 247,920
Reconciliation of the statutory federal rate to the Company's effective income tax rate
U.S. Federal statutory tax rate (as a percent)	21.00%	34.00%	21.00%	24.30%	34.00%
Rate change due to tax reform (as a percent)			0.00%	(9.00%)
State income taxes, net of federal benefit (as a percent)			(0.90%)	1.90%	(0.40%)
Permanent items (as a percent)			0.80%	(0.10%)	0.20%
Research and development tax credits (as a percent)			(0.80%)	1.30%	8.10%
Valuation allowance (as a percent)			(20.20%)	(20.30%)	(35.90%)
Change in unrecognized tax benefits (as a percent)			0.20%	0.90%	(0.90%)
123R cancellations and forfeitures			0.00%	(0.80%)	0.10%
Effective income tax rate (as a percent)			0.10%	(1.80%)	5.20%