Industry Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Aug. 31, 2012	Aug. 31, 2011
Net sales
Net Sales In Percentage	100.00%	100.00%
Total Net sales	$ 49,920	$ 50,284
Operating Loss
Total operating loss	(3,471)	(6,852)
Interest income	3	7
Loss before income taxes	(3,468)	(6,845)
Housing [Member]
Net sales
Net Sales In Percentage	62.00%	58.00%
Total Net sales	30,912	29,143
Operating Loss
Total operating loss	(1,637)	(4,406)
Housing [Member] \| Modular Housing [Member]
Net sales
Net Sales In Percentage	16.00%	11.00%
Total Net sales	7,779	5,467
Housing [Member] \| Domestic [Member] \| Manufactured Housing [Member]
Net sales
Net Sales In Percentage	46.00%	47.00%
Total Net sales	23,133	23,676
Housing [Member] \| Domestic [Member] \| Modular Housing [Member]
Net sales
Net Sales In Percentage	12.00%	8.00%
Total Net sales	6,037	4,213
Housing [Member] \| Canadian [Member] \| Modular Housing [Member]
Net sales
Net Sales In Percentage	4.00%	3.00%
Total Net sales	1,742	1,254
Recreational Vehicles [Member]
Net sales
Net Sales In Percentage	38.00%	42.00%
Total Net sales	19,008	21,141
Operating Loss
Total operating loss	(1,324)	(1,875)
Recreational Vehicles [Member] \| Domestic [Member]
Net sales
Net Sales In Percentage	32.00%	32.00%
Total Net sales	15,933	16,162
Recreational Vehicles [Member] \| Canadian [Member]
Net sales
Net Sales In Percentage	6.00%	10.00%
Total Net sales	3,075	4,979
General Corporate Expense [Member]
Operating Loss
Total operating loss	$ (510)	$ (571)

Sales revenue net percentage.

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- Definition

Sum of operating profit and nonoperating income or expense before Income or Loss from equity method investments, income taxes, extraordinary items, and noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

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-Paragraph 1

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph h

-Subparagraph 1(i)

-Article 4

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- Definition

Income derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time value of money or transactions in which the payments are for the use or forbearance of money.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 14

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

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- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(a))

-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

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-Publisher SEC

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