Note 3 - Fair Value Measurements (Tables)

6 Months Ended

Sep. 29, 2013

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

September 29, 2013	Level 1		Level 2		Level 3		Carrying Value
Marketable securities	$	-	$	11,055	$	-	$	11,055
Total assets at fair value	$	-	$	11,055	$	-	$	11,055

March 31, 2013	Level 1		Level 2		Level 3		Carrying Value
Marketable securities	$	-	$	12,307	$	-	$	12,307
Total assets at fair value	$	-	$	12,307	$	-	$	12,307