Note 6 Inventories (Tables)

6 Months Ended

Sep. 30, 2013

Inventory Net [Abstract]

Schedule of Inventory, Current [Table Text Block]

	September 30,		March 31,
	2013		2013
	(unaudited)
Raw materials	$	20,065	$	17,349
Work in process		42,139		41,036
Finished goods		27,546		25,444
Total	$	89,750	$	83,829