Note 5 - Other Assets (Tables)

6 Months Ended

Sep. 30, 2017

Notes Tables

Schedule of Other Assets, Noncurrent [Table Text Block]

	September 30,		March 31,
	2017		2017
	(unaudited)
Marketable equity securities	$	1,649	$	1,771
Investments in convertible debt		9,063		503
Long-term equity method investments		12,551		11,589
Cost method investments		4,270		3,103
Other items		2,397		1,009
Total	$	29,930	$	17,975