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Note 4 (Detail) - Schedule of Earnings Per Share (USD $)
3 Months Ended 6 Months Ended
Aug. 31, 2012
Aug. 31, 2011
Aug. 31, 2012
Aug. 31, 2011
Net earnings applicable to common shareholders (in Dollars) $ 138,200 $ 126,200 $ 488,400 $ 426,400
Shares:        
Weighted average shares outstanding - basic 3,924,514 3,893,283 3,921,397 3,895,206
Assumed exercise of options   417   1,157
Weighted average shares outstanding - diluted 3,924,514 3,893,700 3,921,397 3,896,363
Basic Earnings Per Share (in Dollars per share) $ 0.04 $ 0.03 $ 0.12 $ 0.11
Diluted Earnings Per Share (in Dollars per share) $ 0.04 $ 0.03 $ 0.12 $ 0.11