Property, Plant and Equipment (Tables)

12 Months Ended

Mar. 31, 2014

Schedule of Cost and Accumulated Depreciation of Property and Equipment

The cost and accumulated depreciation of property and equipment at March 31, 2014 and 2013 are as follows (in thousands):

	March 31,
	2014			2013
Land	$	3,643		$	3,643
Construction in progress - equipment		117			14,505
Buildings		34,341			34,398
Equipment and software		83,861			71,116
Furniture and fixtures		1,353			1,626
Leasehold improvements		5,211			5,556
Property, plant and equipment, gross		128,526			130,844
Less accumulated depreciation		(63,952	)		(56,218	)
Property, plant and equipment, net	$	64,574		$	74,626