Note 8 - Income Per Share (Detail) - Schedule of Earnings Per Share Reconciliation (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 23, 2012	Sep. 25, 2011	Sep. 23, 2012	Sep. 25, 2011
Basic EPS
Basic calculation (in Dollars)	$ 2,845	$ 2,269	$ 4,851	$ 3,865
Basic calculation	4,407,000	5,025,000	4,387,000	5,051,000
Basic calculation (in Dollars per share)	$ 0.65	$ 0.45	$ 1.11	$ 0.77
Effect of dilutive employee stock options (in Dollars)	0	0	0	0
Effect of dilutive employee stock options	197,000	138,000	181,000	131,000
Effect of dilutive employee stock options (in Dollars per share)	$ (0.03)	$ (0.01)	$ (0.05)	$ (0.02)
Diluted EPS
Diluted calculation (in Dollars)	$ 2,845	$ 2,269	$ 4,851	$ 3,865
Diluted calculation	4,604,000	5,163,000	4,568,000	5,182,000
Diluted calculation (in Dollars per share)	$ 0.62	$ 0.44	$ 1.06	$ 0.75