Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 6,120	$ 2,190
Other comprehensive income
Unrealized (loss) gain on securities available for sale	(293)	127
Reclassification adjustments for security gains included in net income		(68)
Defined benefit pension plan gain (loss)	893	(150)
Other comprehensive income (loss), before tax	600	(91)
Deferred income tax effect	(190)	64
Total other comprehensive income (loss)	410	(27)
Total comprehensive income	$ 6,530	$ 2,163