INVENTORIES (Tables)

3 Months Ended

Jun. 30, 2015

INVENTORIES

Schedule of components of inventories

(In thousands)	June 30, 2015		March 31, 2015
Raw materials, completed sub-assemblies, and spare parts	$	18,430	$	20,334
Work-in-process	15,713		17,853
Finished goods	3,129		2,796
Total	$	37,272	$	40,983