Property, Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Mar. 31, 2012
Property, plant and equipment, at cost:
Property, plant and equipment, at cost	$ 61,861	$ 61,693
Accumulated depreciation	(12,255)	(11,629)
Property, plant and equipment, net	49,606	50,064
Land [Member]
Property, plant and equipment, at cost:
Property, plant and equipment, at cost	21,106	21,106
Buildings and improvements [Member]
Property, plant and equipment, at cost:
Property, plant and equipment, at cost	25,216	25,111
Machinery and equipment [Member]
Property, plant and equipment, at cost:
Property, plant and equipment, at cost	$ 15,539	$ 15,476

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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