Note 6 Inventories (Tables)

3 Months Ended

Jun. 30, 2013

Inventory Net [Abstract]

Schedule of Inventory, Current [Table Text Block]

	June 30,		March 31,
	2013		2013
	(unaudited)
Raw materials	$	18,100	$	17,349
Work in process		41,940		41,036
Finished goods		26,857		25,444
Total	$	86,897	$	83,829