Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Comprehensive income
Net income	$ 27,118	$ 23,600	$ 27,583
Other comprehensive loss
Unrealized holding loss on investment securities available for sale, net of income taxes of $(98), $(209), and $(2), respectively	(369)	(781)	(12)
Change in OTTI on investment securities held to maturity, net of income taxes:
Adjustments related to other factors for which OTTI was previously recognized, net of income taxes of $0, $0, and $1, respectively	0	(1)	2
Accretion of OTTI on investment securities held to maturity, net of income taxes of $1, $2, and $2, respectively	2	6	8
Total other comprehensive loss, net of income taxes	(367)	(776)	(2)
Total comprehensive income	$ 26,751	$ 22,824	$ 27,581