CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated other comprehensive loss	Total
Beginning Balance (in Shares) at Sep. 30, 2020	4,276
Beginning Balance at Sep. 30, 2020	$ 43	$ 16,994	$ 24,492	$ (11,995)	$ 29,534
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)			304		304
Other comprehensive income (loss)				351	351
Stock-based compensation		505			505
Restricted stock issuance	$ 1				1
Restricted stock issuance (in shares)	103
Issuance of shares under employee stock purchase plan		106			106
Issuance of shares under employee stock purchase plan (in shares)	15
Ending Balance (in Shares) at Mar. 31, 2021	4,394
Ending Balance at Mar. 31, 2021	$ 44	17,605	24,796	(11,644)	30,801
Beginning Balance (in Shares) at Dec. 31, 2020	4,276
Beginning Balance at Dec. 31, 2020	$ 43	17,259	25,643	(11,693)	31,252
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)			(847)		(847)
Other comprehensive income (loss)				49	49
Stock-based compensation		240			240
Restricted stock issuance	$ 1				1
Restricted stock issuance (in shares)	103
Issuance of shares under employee stock purchase plan		106			106
Issuance of shares under employee stock purchase plan (in shares)	15
Ending Balance (in Shares) at Mar. 31, 2021	4,394
Ending Balance at Mar. 31, 2021	$ 44	17,605	24,796	(11,644)	$ 30,801
Beginning Balance (in Shares) at Sep. 30, 2021	4,394				4,394
Beginning Balance at Sep. 30, 2021	$ 45	18,258	25,191	(9,448)	$ 34,046
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)			(210)		(210)
Other comprehensive income (loss)				(152)	(152)
Stock-based compensation		472			472
Restricted stock cancellation	(1)				(1)
Restricted stock issuance	$ 2				2
Restricted stock issuance (in shares)	141
Issuance of shares under employee stock purchase plan		90			90
Issuance of shares under employee stock purchase plan (in shares)	11
Purchase of common stock			(100)		$ (100)
Purchase of common stock (in shares)	(13)
Ending Balance (in Shares) at Mar. 31, 2022	4,533				4,533
Ending Balance at Mar. 31, 2022	$ 46	18,820	24,881	(9,600)	$ 34,147
Beginning Balance (in Shares) at Dec. 31, 2021	4,394
Beginning Balance at Dec. 31, 2021	$ 44	18,483	24,825	(9,419)	33,933
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)			156		156
Other comprehensive income (loss)				(181)	(181)
Stock-based compensation		247			247
Restricted stock issuance	$ 2				2
Restricted stock issuance (in shares)	141
Issuance of shares under employee stock purchase plan		90			90
Issuance of shares under employee stock purchase plan (in shares)	11
Purchase of common stock			(100)		$ (100)
Purchase of common stock (in shares)	(13)				(13)
Ending Balance (in Shares) at Mar. 31, 2022	4,533				4,533
Ending Balance at Mar. 31, 2022	$ 46	$ 18,820	$ 24,881	$ (9,600)	$ 34,147