Note 21 - Quarterly Financial Data (Unaudited) - Quarterly Financial Data (Unaudited) (Details) - USD ($)	3 Months Ended								12 Months Ended
	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Oct. 03, 2015	Jul. 01, 2015	Mar. 31, 2015	Dec. 29, 2014	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014
Net sales	$ 15,975,000	$ 15,347,000	$ 14,853,000	$ 21,452,000	$ 17,747,000	$ 15,813,000	$ 15,034,000	$ 15,721,000	$ 67,627,170	$ 64,314,996	$ 55,857,375
Gross profit	5,953,000	5,654,000	5,191,000	5,483,000	5,765,000	5,441,000	4,982,000	5,449,000	22,281,176	21,635,983	18,789,638
Operating income	1,879,000	1,486,000	1,160,000	1,556,000	1,670,000	1,318,000	925,000	1,344,000	6,082,264	5,257,452	3,610,580
Net income	$ 1,412,000	$ 935,000	$ 758,000	$ 1,143,000	$ 1,287,000	$ 963,000	$ 773,000	$ 970,000	$ 4,247,331	$ 3,993,398	$ 2,590,767
Basic (in dollars per share)	$ 0.51	$ 0.34	$ 0.28	$ 0.42	$ 0.43	$ 0.32	$ 0.26	$ 0.33	$ 1.55	$ 1.34	$ 0.88
Diluted (in dollars per share)	$ 0.51	$ 0.34	$ 0.28	$ 0.42	$ 0.43	$ 0.32	$ 0.26	$ 0.32	$ 1.54	$ 1.33	$ 0.87