Note E - Table of Earnings Per Share Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 27, 2015	Dec. 28, 2014	Dec. 27, 2015	Dec. 28, 2014
Basic calculation	$ 432	$ 2,241	$ 5,589	$ 10,166
Basic calculation (in shares)	4,408,000	4,482,000	4,474,000	4,475,000
Basic calculation (in dollars per share)	$ 0.10	$ 0.50	$ 1.25	$ 2.27
Effect of dilutive employee stock options (in shares)	36,000	121,000	30,000	121,000
Effect of dilutive employee stock options (in dollars per share)	$ 0	$ (0.01)	$ (0.01)	$ (0.06)
Diluted calculation	$ 432	$ 2,241	$ 5,589	$ 10,166
Diluted calculation (in shares)	4,444,000	4,603,000	4,504,000	4,596,000
Diluted calculation (in dollars per share)	$ 0.10	$ 0.49	$ 1.24	$ 2.21