CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated other comprehensive loss	Total
Beginning Balance (in Shares) at Sep. 30, 2021	4,394,000
Beginning Balance at Sep. 30, 2021	$ 45	$ 18,258	$ 25,191	$ (9,448)	$ 34,046
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			1,889		1,889
Other comprehensive income				2,120	2,120
Stock-based compensation		979			979
Restricted stock cancellation	(1)				(1)
Restricted stock issuance	$ 2				2
Restricted stock issuance (in shares)	151,000
Issuance of shares under employee stock purchase plan		239			$ 239
Issuance of shares under employee stock purchase plan (in shares)	31,000				31,372
Purchase of common stock			(174)		$ (174)
Purchase of common stock (in shares)	(22,000)
Cash dividends paid on common stock			(137)		$ (137)
Ending Balance (in Shares) at Sep. 30, 2022	4,554,000				4,554,000
Ending Balance at Sep. 30, 2022	$ 46	19,476	26,769	(7,328)	$ 38,963
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			5,204		5,204
Other comprehensive income				1,234	1,234
Stock-based compensation		1,127			1,127
Restricted stock issuance	$ 2				2
Restricted stock issuance (in shares)	143,000
Issuance of shares under employee stock purchase plan		280			$ 280
Issuance of shares under employee stock purchase plan (in shares)	32,000				30,885
Purchase of common stock			(6)		$ (6)
Purchase of common stock (in shares)	(1,000)				(600)
Cash dividends paid on common stock			(656)		$ (656)
Ending Balance (in Shares) at Sep. 30, 2023	4,728,000				4,728,000
Ending Balance at Sep. 30, 2023	$ 48	$ 20,883	$ 31,311	$ (6,094)	$ 46,148