STOCK OPTIONS - Schedule of stock options, activity (Details) - USD ($)			12 Months Ended
	Sep. 04, 2018	Aug. 10, 2018	Sep. 28, 2019	Sep. 29, 2018
Shares
Outstanding, beginning of period (in Shares)			378,750	421,800
Granted (in Shares)	20,000	5,000	34,000	25,000
Exercised (in Shares)			(40,500)	(42,000)
Canceled or expired (in Shares)			(8,750)	(26,050)
Outstanding and expected to vest, end of period (in Shares)			363,500	378,750
Outstanding and expected to vest, end of period (in Shares)			328,500	366,250
Shares available for future grant (in Shares)			441,000	475,000
Weighted Average Exercise Price
Outstanding, beginning of period (in Dollars per share)			$ 18.46	$ 17.86
Granted (in Dollars per share)	$ 22.30	$ 20.36	19.79	21.91
Exercised (in Dollars per share)			12.42	14.39
Canceled or expired (in Dollars per share)			18.76	18.60
Outstanding and expected to vest, end of period (in Dollars per share)			19.25	18.46
Exercisable, end of period (in Dollars per share)			$ 19.11	$ 18.35
Weighted Average Contractual Term
Outstanding			4 years 8 months 12 days	4 years 9 months 18 days
Exercisable			4 years 2 months 12 days
Aggregate Intrinsic Value
Outstanding and expected to vest, end of period			$ 807,000	$ 1,824,400
Exercisable, end of period			$ 797,000	$ 1,807,300