Property, Plant and Equipment

12 Months Ended

Mar. 31, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, Plant and Equipment

The cost and accumulated depreciation of property and equipment at March 31, 2017 and 2016 are as follows (in thousands):

	March 31, 2017			March 31, 2016
Land	$	3,643		$	3,643
Construction in progress - equipment	601			601
Buildings	34,549			34,549
Equipment and software	73,445			73,659
Furniture and fixtures	1,201			1,215
Leasehold improvements	2,442			3,600
Property, plant and equipment, gross	115,881			117,267
Less accumulated depreciation	(72,443		)	(67,489		)
Property, plant and equipment, net	$	43,438		$	49,778

Depreciation expense was $7.0 million, $7.4 million, and $9.0 million, for the fiscal years ended March 31, 2017, 2016, and 2015, respectively.