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Property, Plant and Equipment	12 Months Ended
	May. 31, 2015
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	NOTE 5 Property, Plant and Equipment During the fourth quarter of fiscal 2015, an idle housing facility located in Ocala, Florida was sold for a gain of $243,000. During the second quarter of fiscal 2014, the Corporation sold an idle housing facility located in Fair Haven, Vermont for a gain of $162,000. In the third quarter of fiscal 2014, an idle housing facility located in Halstead, Kansas was sold for a gain of $300,000. In the fourth quarter of fiscal 2014, undeveloped land located in Elkhart, Indiana was sold for a gain of $244,000.

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- Definition

The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.

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