Note 4 - Marketable Securities (Tables)

9 Months Ended

Dec. 23, 2012

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Market Value
December 23, 2012	$	11,797	$	619	$	-	$	12,416
March 25, 2012	$	13,897	$	814	$	1	$	14,710

Investments Classified by Contractual Maturity Date [Table Text Block]

Fair value of Municipal Bonds	Total		Less than 1 Year		1 – 5 Years		5 – 10 Years		After 10 Years
December 23, 2012	$	12,416	$	2,958	$	8,210	$	1,248	$	-