Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Basic EPS
Net income available to common stockholders	$ 23,556	$ 10,851
Less: Dividends paid and earnings allocated to participating securities	(903)	(218)
Income attributable to common stock	$ 22,653	$ 10,633
Weighted average common shares outstanding, including participating securities (in shares)	6,302,328	4,669,009
Less: Weighted average participating securities (in shares)	(237,259)	(93,799)
Weighted average common shares outstanding (in shares)	6,065,069	4,575,210
Basic EPS (in dollars per share)	$ 3.74	$ 2.32
Diluted EPS
Income attributable to common stock	$ 22,653	$ 10,633
Weighted average common shares outstanding (in shares)	6,065,069	4,575,210
Weighted average common equivalent shares outstanding (in shares)	92,977	89,660
Weighted average common and equivalent shares outstanding (in shares)	6,158,046	4,664,870
Diluted EPS (in dollars per share)	$ 3.68	$ 2.28
Antidilutive stock options (in shares)	0	0