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Industry Segment Information - Schedule Representing Reconciliation of Assets (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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May 31, 2014 | May 31, 2013
Operating assets |  |
Total operating assets | $ 65,754 | $ 63,927
U.S. Treasury bills | 0 | 4,000
Total Assets | 65,754 | 67,927
DEPRECIATION |  |
Total depreciation | 1,716 | 2,002
CAPITAL EXPENDITURES |  |
Total capital expenditures | 753 | 75
Housing [Member] |  |
Operating assets |  |
Total operating assets | 51,625 | 45,072
DEPRECIATION |  |
Total depreciation | 1,359 | 1,490
CAPITAL EXPENDITURES |  |
Total capital expenditures | 722 | 48
Recreational Vehicles [Member] |  |
Operating assets |  |
Total operating assets | 14,129 | 18,855
DEPRECIATION |  |
Total depreciation | 357 | 512
CAPITAL EXPENDITURES |  |
Total capital expenditures | $ 31 | $ 27

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- Definition Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity, expected to be converted to cash, sold or exchanged within one year or the normal operating cycle. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26626-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 + Details
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- Definition Amount of acquisition 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. + References No definition available. + Details
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