Income Taxes (Details) - USD ($)			3 Months Ended		9 Months Ended		12 Months Ended
	Jan. 01, 2018	Dec. 31, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Sep. 30, 2018
Income Taxes
U.S. Federal statutory tax rate (as a percent)	21.00%	35.00%					24.50%
Net operating loss previous carryback period elimination					2 years
Income tax expense (benefit)			$ 0	$ 101	$ 7,794	$ 61,920
Effective tax rate benefit (as a percent)			0.00%	0.00%	0.90%	(1.90%)
Change in valuation allowance			$ 565,000	$ 2,500,000	$ 811,000	$ 4,800,000