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Schedule of Estimated Future Warranty Costs (Details)	3 Months Ended	12 Months Ended
Schedule of Estimated Future Warranty Costs (Details)	May 31, 2013	Feb. 23, 2013 Year 1	Feb. 28, 2013 Year 2	Feb. 28, 2013 Year 3	Feb. 28, 2013 Year 4	Feb. 28, 2013 Year 5
Total Warranty Reserve as a % of Sales	2.00%	0.10%	0.30%	0.40%	0.50%	0.70%