Note 8 - Basic and Diluted Earnings Per Share (Details) (USD $)	3 Months Ended		6 Months Ended
	Mar. 28, 2015	Mar. 29, 2014	Mar. 28, 2015	Mar. 29, 2014
Numerator for basic and diluted earnings per share:
Net income	$ 773,438	$ 890,681	$ 1,743,763	$ 1,556,811
Denominator for basic earnings per share:
Weighted average shares (in shares)	2,979,097	2,945,416	2,969,895	2,936,416
Effect of dilutive securities:
Employee stock options (in shares)	26,854	45,990	30,982	47,908
Denominator for diluted earnings per share:
Adjusted weighted average shares and assumed conversions (in shares)	3,005,951	2,991,406	3,000,877	2,984,324
Net income per share of common stock:
Basic (in dollars per share)	$ 0.26	$ 0.30	$ 0.59	$ 0.53
Diluted (in dollars per share)	$ 0.26	$ 0.30	$ 0.58	$ 0.52