Annual report pursuant to Section 13 and 15(d)

Note 14 - Quarterly Financial Data (Unaudited) (Detail) - Summary Quarterly Financial Data (Unaudited):

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Note 14 - Quarterly Financial Data (Unaudited) (Detail) - Summary Quarterly Financial Data (Unaudited): (USD $)
 12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2010
2012      
Net revenues $ 35,033,897 $ 18,565,102 $ 22,221,955
Gross profit 20,621,013 9,865,190 12,924,819
Operating expenses 9,681,083 6,569,848 8,575,659
Income tax expense (benefit) (4,507,298) (2,167,076) (2,512,946)
Net income 15,299,321 5,399,051 6,737,078
Net income (loss) per common share – basic (in Dollars per share) $ 0.55 $ 0.20 $ 0.25
Net income (loss) per common share – diluted (in Dollars per share) $ 0.53 $ 0.19 $ 0.24
First Quarter [Member]
      
2012      
Net revenues 8,634,442 3,651,368  
Gross profit 5,016,144 2,016,918  
Operating expenses 2,232,864 1,582,931  
Income tax expense (benefit) 71,385 17,130  
Net income 2,659,944 386,668  
Net income (loss) per common share – basic (in Dollars per share) $ 0.10 $ 0.01  
Net income (loss) per common share – diluted (in Dollars per share) $ 0.09 $ 0.01  
Second Quarter [Member]
      
2012      
Net revenues 7,831,364 4,287,245  
Gross profit 4,560,969 1,807,234  
Operating expenses 2,397,738 1,705,949  
Income tax expense (benefit) 226,836 (8,130)  
Net income 1,904,429 80,998  
Net income (loss) per common share – basic (in Dollars per share) $ 0.07 $ 0.00  
Net income (loss) per common share – diluted (in Dollars per share) $ 0.07 $ 0.00  
Third Quarter [Member]
      
2012      
Net revenues 8,656,390 3,517,439  
Gross profit 5,293,736 1,813,685  
Operating expenses 2,485,690 1,363,184  
Income tax expense (benefit) 273,839 15,266  
Net income 2,549,743 416,667  
Net income (loss) per common share – basic (in Dollars per share) $ 0.09 $ 0.02  
Net income (loss) per common share – diluted (in Dollars per share) $ 0.09 $ 0.01  
Fourth Quarter [Member]
      
2012      
Net revenues 9,911,701 7,109,050  
Gross profit 5,750,164 4,227,353  
Operating expenses 2,564,791 1,917,784  
Income tax expense (benefit) (5,079,358) (2,191,342)  
Net income $ 8,185,205 $ 4,514,718  
Net income (loss) per common share – basic (in Dollars per share) $ 0.29 $ 0.17  
Net income (loss) per common share – diluted (in Dollars per share) $ 0.29 $ 0.16