Inventories (Tables)

12 Months Ended

Mar. 31, 2015

Inventory Disclosure [Abstract]

Schedule of inventories

The components of inventories as of March 31, 2014 and 2015 are as follows:

	2014	2015
	$ in thousands	$ in thousands
Raw materials	5,137	1,978
Work in progress	2,229	676
Finished goods	179	467
	7,545	3,121