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Income Taxes (Details 1)	9 Months Ended	12 Months Ended
Income Taxes (Details 1)	Nov. 30, 2012	Feb. 28, 2009
Reconciliation of the U.S. federal statutory tax rate to the Company’s effective tax rate
U.S. federal statutory rate	34.00%	34.00%
Change in valuation allowance	(34.00%)	(34.00%)
Alternative minimum taxes	2.50%	2.20%
Effective income tax rate	2.50%	2.20%

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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