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, 2019	4,154
Beginning Balance at Sep. 30, 2019	$ 42	$ 15,733	$ 27,246	$ (12,593)	$ 30,428
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income			(1,272)		(1,272)
Other comprehensive gain (loss)				24	24
Exercise of stock options		2			2
Stock-based compensation		455			455
Restricted stock issuance	$ 1				1
Restricted stock issuance (in shares)	97
Issuance of shares under employee stock purchase plan		110			110
Issuance of shares under employee stock purchase plan (in shares)	9
Purchase of common stock			(43)		(43)
Purchase of common stock (in shares)	6
Cash paid on common stock			(1,263)		(1,263)
Ending Balance (in Shares) at Mar. 31, 2020	4,254
Ending Balance at Mar. 31, 2020	$ 43	16,300	24,668	(12,569)	28,442
Beginning Balance (in Shares) at Dec. 31, 2019	4,154
Beginning Balance at Dec. 31, 2019	$ 42	15,940	26,083	(12,267)	29,798
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) income			(732)		(732)
Other comprehensive gain (loss)				(302)	(302)
Stock-based compensation		250			250
Restricted stock issuance	$ 1				1
Restricted stock issuance (in shares)	97
Issuance of shares under employee stock purchase plan		110			110
Issuance of shares under employee stock purchase plan (in shares)	9
Purchase of common stock			(43)		(43)
Purchase of common stock (in shares)	6
Cash paid on common stock			(640)		(640)
Ending Balance (in Shares) at Mar. 31, 2020	4,254
Ending Balance at Mar. 31, 2020	$ 43	16,300	24,668	(12,569)	$ 28,442
Beginning Balance (in Shares) at Sep. 30, 2020	4,276				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 (loss) income			304		304
Other comprehensive gain (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				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 (loss) income			(847)		(847)
Other comprehensive gain (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				4,394
Ending Balance at Mar. 31, 2021	$ 44	$ 17,605	$ 24,796	$ (11,644)	$ 30,801