Note 4 Fair Value (Tables)

12 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

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

		March 31, 2015 (1)						March 31, 2014 (1)
				Fair Value Measured at						Fair Value Measured at
				Reporting Date Using						Reporting Date Using
Description		Total		Level 1		Level 2		Total		Level 1		Level 2
Money market funds (2)		$	76,317	$	76,317	$	-	$	59,706	$	59,706	$	-
Marketable equity securities (3)			1,737		1,737		-		4,158		4,158		-
Auction rate preferred securities (3)			350		-		350		350		-		350
Derivative liabilities (4)			(19)		-		(19)		(112)		-		(112)
Total		$	78,385	$	78,054	$	331	$	64,102	$	63,864	$	238
(1)	We did not have any recurring fair value measurements of assets or liabilities whose fair value was measured using significant unobservable inputs.
(2)	Included in "Cash and cash equivalents" on our audited consolidated balance sheets.
(3)	Included in "Other assets" on our audited consolidated balance sheets.
(4)	Included in ''Accrued expenses and other current liabilities'' on our audited consolidated balance sheets.