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Note 2 - Earnings per Share (Detail)
3 Months Ended 9 Months Ended
Nov. 30, 2012
Nov. 30, 2011
Nov. 30, 2012
Nov. 30, 2011
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 101,661 117,663 102,853 118,570