Note 4 - Calculation of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 30, 2017	Dec. 24, 2016
Net Earnings available to common stockholders	$ 36,249	$ 13,540
Weighted average number of shares outstanding, basic (in shares)	18,666	18,686
Earnings per share, basic (in dollars per share)	$ 1.94	$ 0.72
Options	$ 0	$ 0
Options (in shares)	112	101
Options (in dollars per share)	$ (0.01)
Net Earnings available to common stockholders plus assumed conversions	$ 36,249	$ 13,540
Weighted average number of shares outstanding, diluted (in shares)	18,778	18,787
Earnings per share, diluted (in dollars per share)	$ 1.93	$ 0.72