Note 5 - Marketable Securities (Tables)

12 Months Ended

Mar. 31, 2013

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

	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Market Value
March 31, 2013	$	11,768	$	539	$	-	$	12,307
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
March 31, 2013	$	12,307	$	2,927	$	8,146	$	1,234	$	-

Realized Gain (Loss) on Investments [Table Text Block]

	March 31, 2013		March 25, 2012		March 27, 2011
Available-for-sale securities:
Proceeds	$	2,000	$	4,050	$	4,906
Gross realized gains	$	-	$	-	$	4