Note J - Income Taxes (Details Textual) (USD $)	9 Months Ended
	Dec. 28, 2014	Dec. 29, 2013
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	40.90%	39.30%
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent	0.30%	0.80%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 315,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	362,000
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit	$ (64,000)
Estimated Annual Tax Rate Lower End of Range	39.50%
Estimated Annual Tax Rate Upper End of Range	41.50%
Scenario, Forecast [Member]
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%