CONDENSED CONSOLIDATED STATEMENTS of CHANGES in STOCKHOLDERS' EQUITY (unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Treasury Stock, at cost
Beginning balance (shares) at Sep. 30, 2018	10,338,548	10,248,905
Beginning Balance at Sep. 30, 2018	$ 25,376	$ 102	$ 47,326	$ (20,463)	$ (1,589)
Net income	1,072			1,072
Stock-based compensation	146		146
Restricted stock vested, net of shares withheld for payment of taxes (shares)		4,439
Restricted stock vested, net of shares withheld for payment of taxes	$ 0	$ 0	0
Exercise of stock options, net of shares surrendered (shares)	11,500	2,553
Exercise of stock options, net of shares surrendered	$ 0
Employee stock plan purchases (shares)		5,674
Exercise of stock options, net of shares surrendered	20		20
Ending Balance at Dec. 28, 2018	27,055	$ 102	47,492	(18,950)	(1,589)
Ending balance (shares) at Dec. 28, 2018		10,261,571
Beginning balance (shares) at Sep. 30, 2019		10,338,548
Beginning Balance at Sep. 30, 2019	31,240	$ 103	48,001	(15,275)	(1,589)
Net income	1,189			1,189
Stock-based compensation	152		152
Restricted stock vested, net of shares withheld for payment of taxes (shares)		6,367
Restricted stock vested, net of shares withheld for payment of taxes	(24)	$ 0	(24)
Restricted stock units vested, net of shares withheld for payment of taxes (shares)		0
Restricted stock units vested, net of shares withheld for payment of taxes	$ 0	$ 0	0
Exercise of stock options, net of shares surrendered (shares)	24,000	24,000
Exercise of stock options, net of shares surrendered	$ 130		130
Employee stock plan purchases (shares)		6,449
Exercise of stock options, net of shares surrendered	40		40
Ending Balance at Dec. 27, 2019	$ 32,727	$ 103	$ 48,299	$ (14,086)	$ (1,589)
Ending balance (shares) at Dec. 27, 2019	10,375,364	10,375,364