Property, Plant and Equipment (Tables)

3 Months Ended

Aug. 31, 2013

Property, Plant and Equipment

Depreciation and amortization of assets are computed by the straight-line method over the following estimated useful lives of the assets:

Classification	Useful Life
Buildings		20-40 years
Leasehold improvements		2-15 years
Machinery and equipment		2-12 years
Furniture and fixtures		2-10 years
Computers and computer software		2-5 years
Automobiles		2-5 years

Property, Plant and Equipment

Property, Plant and Equipment

A summary of property, plant and equipment as of August 31, 2013 and May 31, 2013 is as follows (in thousands):

	August 31, 2013			May 31, 2013
	(unaudited)
Land	$	3,092		$	3,108
Buildings and leasehold improvements		20,603			18,445
Machinery and equipment		141,102			137,439
Furniture and fixtures		4,668			4,469
Computers and computer software		9,146			8,871
Automobiles		3,572			3,842
Construction in progress		3,499			3,816
Total		185,682			179,990
Accumulated depreciation and amortization		(108,958	)		(105,051	)
Property, plant, and equipment, net	$	76,724		$	74,939