Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2020
Income Taxes [Line Items]
Income Tax Expense (Benefit)	$ 329,000	$ 369,000
Unrecognized Tax Benefits, Period Increase (Decrease)	61,000
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	92,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	918,000
Provision for incremental Income tax liability			$ 657,000
Provision for income tax interest			66,000
Additional interest expense accrued	$ 9,000
IRS
Income Taxes [Line Items]
Provision for tax, federal			762,000
Provision for tax, state			$ 70,000