Note 8 - Basic and Diluted Earnings Per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jul. 02, 2016	Jun. 27, 2015	Jul. 02, 2016	Jun. 27, 2015
Numerator for basic and diluted earnings per share:
Net income	$ 935,219	$ 962,535	$ 2,835,720	$ 2,706,298
Denominator for basic earnings per share:
Weighted average shares (in shares)	2,734,468	2,991,192	2,729,743	2,976,994
Effect of dilutive securities:
Employee stock options (in shares)	24,035	26,344	25,418	29,436
Weighted average shares outstanding:
Adjusted weighted average shares and assumed conversions (in shares)	2,758,503	3,017,536	2,755,161	3,006,430
Net income per share of common stock:
Basic (in dollars per share)	$ 0.34	$ 0.32	$ 1.04	$ 0.91
Diluted (in dollars per share)	$ 0.34	$ 0.32	$ 1.03	$ 0.90