Note 4 - Inventories, Net (Tables)

12 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	March 31,
	2014		2013
Finished goods, net	$	15,582	$	30,531
Raw materials, net		10,367		17,766
Work in progress, net		6,769		4,717
Total, net	$	32,718	$	53,014