Note 4 - Calculation of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 26, 2020	Dec. 28, 2019
Net Earnings available to common stockholders	$ 1,778	$ 17,059
Weighted average number of basic shares (in shares)	18,935	18,898
(Loss) earnings per basic share (in dollars per share)	$ 0.09	$ 0.90
Options	$ 0	$ 0
Options (in shares)	96	246
Options, per share (in dollars per share)	$ 0	$ (0.01)
Net Earnings available to common stockholders plus assumed conversions	$ 1,778	$ 17,059
Weighted average number of diluted shares (in shares)	19,031	19,144
(Loss) earnings per diluted share (in dollars per share)	$ 0.09	$ 0.89