Note 6 - Inventories (Tables)

3 Months Ended

Jun. 30, 2017

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	June 30,		March 31,
	2017		2017
	(unaudited)
Raw materials	$	18,831	$	17,920
Work in process		46,392		45,634
Finished goods		27,146		25,882
Total	$	92,369	$	89,436