Note 5 - Other Assets (Tables)

3 Months Ended

Jun. 30, 2015

Notes Tables

Schedule of Other Assets, Noncurrent [Table Text Block]

	June 30,		March 31,
	2015		2015
	(unaudited)
Marketable equity securities	$	1,545	$	1,737
Auction rate preferred securities		350		350
Long-term equity investments		11,042		11,041
Other items		734		576
Total	$	13,671	$	13,704