Note 10 - Earnings Per Share - Basic and Diluted Earnings Per Share Attributable to Common Shareholders (Details) - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Net earnings available to common shareholders	$ 5,392,000	$ 5,797,000	$ 12,086,000	$ 12,066,000
Basic weighted average shares outstanding (in shares)	18,438	18,267	18,407	18,230
Dilutive effect of stock-based compensation (in shares)	390	416	416	406
Diluted weighted average shares outstanding (in shares)	18,828	18,683	18,823	18,636
Net earnings per share:
Basic (in dollars per share)	$ 0.29	$ 0.32	$ 0.66	$ 0.66
Diluted (in dollars per share)	$ 0.29	$ 0.31	$ 0.64	$ 0.65