Note 9 - Basic and Diluted Earnings Per Share (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Numerator for basic and diluted earnings per share:
Net income	$ 962,535	$ 378,053	$ 2,706,298	$ 1,934,864
Denominator for basic earnings per share:
Weighted average shares (in shares)	2,991,192	2,961,128	2,976,994	2,944,653
Effect of dilutive securities:
Employee stock options (in shares)	26,344	43,598	29,436	46,471
Denominator for diluted earnings per share:
Adjusted weighted average shares and assumed conversions (in shares)	3,017,536	3,004,726	3,006,430	2,991,124
Net income per share of common stock:
Basic (in dollars per share)	$ 0.32	$ 0.13	$ 0.91	$ 0.66
Diluted (in dollars per share)	$ 0.32	$ 0.13	$ 0.90	$ 0.65