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Note 2 - Net Income Per Share (Details) - Net Income Per Common Share (USD $)
 3 Months Ended 9 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Net Income Per Common Share [Abstract]        
Net income (in Dollars) $ 1,174,840 $ 1,146,987 $ 4,383,471 $ 2,237,476
Weighted average common shares 13,045,913 12,513,084 12,827,199 12,497,462
Dilutive potential common shares 502,035 692,734 742,195 479,333
Weighted average dilutive common shares outstanding 13,547,948 13,205,818 13,569,394 12,976,795
Net income per common share:        
Basic (in Dollars per share) $ 0.09 $ 0.09 $ 0.34 $ 0.18
Diluted (in Dollars per share) $ 0.08 $ 0.09 $ 0.32 $ 0.17