Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Current expense (benefit):
Federal	$ 0	$ 93
State	467	123
Total current expense (benefit):	467	216
Deferred expense (benefit):
Federal	68	172
State	62	(18)
Total deferred expense (benefit):	130	154
Total income tax expense (benefit):	$ 597	$ 370