Note 5 - Other Assets (Tables)

12 Months Ended

Mar. 31, 2017

Notes Tables

Schedule of Other Assets, Noncurrent [Table Text Block]

	March 31,
	2017		2016
Marketable equity securities	$	1,771	$	1,749
Auction rate preferred securities		350		350
Long-term equity method investments		11,589		10,977
Other items, including cost method investments		4,265		686
Total	$	17,975	$	13,762

Available-for-sale Securities [Table Text Block]

	Fiscal Year 2017									Fiscal Year 2016
	Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Fair Value		Cost		Gross Unrealized Gains		Gross Unrealized (Losses)			Fair Value
Marketable equity securities	$	2,116	$	254	$	(599	)	$	1,771	$	1,875	$	46	$	(172	)	$	1,749
Auction rate preferred securities	$	350	$	-	$	-		$	350	$	350	$	-	$	-		$	350

Schedule of Unrealized Loss on Investments [Table Text Block]

	Less than 12 Months				12 Months or Greater				Total
Period	Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value		Gross Unrealized Losses		Fair Value
March 31, 2017	$	552	$	469	$	47	$	263	$	599	$	732
March 31, 2016	$	29	$	581	$	143	$	932	$	172	$	1,513