CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Beginning Balance (in Shares) at Sep. 30, 2020	4,276,000
Beginning Balance at Sep. 30, 2020	$ 43	$ 16,994	$ 24,492	$ (11,995)	$ 29,534
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income			699		699
Other comprehensive income				2,547	2,547
Stock-based compensation		981			981
Restricted stock cancellation (in shares)	(19,000)
Restricted stock issuance	$ 2				2
Restricted stock issuance (in shares)	104,000
Issuance of shares under employee stock purchase plan		283			$ 283
Issuance of shares under employee stock purchase plan (in shares)	33,000				32,939
Ending Balance (in Shares) at Sep. 30, 2021	4,394,000				4,394,000
Ending 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)				(22,398,000)
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