Note 5 - Other Assets - Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Mar. 31, 2017
Marketable equity securities	$ 1,821	$ 1,771
Long-term equity method investments	12,145	11,589
Other items, including cost method investments	8,236	4,615
Total	$ 22,202	$ 17,975