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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (USD $)
3 Months Ended 9 Months Ended
Jul. 31, 2011
Jul. 31, 2010
Jul. 31, 2011
Jul. 31, 2010
Sales, net $ 12,376,352 $ 9,263,892 $ 53,875,101 $ 38,489,012
Cost of goods sold 4,908,939 4,620,568 21,450,356 18,151,062
Gross profit 7,467,413 4,643,324 32,424,745 20,337,950
Operating and administrative expenses:        
Sales and distribution 1,559,863 1,284,990 4,430,053 3,689,290
General and administrative 1,233,288 395,131 2,744,932 2,208,965
Research and development 1,686,677 1,528,933 2,585,863 2,251,854
Total operating expenses 4,479,828 3,209,054 9,760,848 8,150,109
Income from operations 2,987,585 1,434,270 22,663,897 12,187,841
Other income:        
Interest income 34,144 22,039 81,286 49,206
Income before income tax expenses 3,021,729 1,456,309 22,745,183 12,237,047
Income tax expenses 501,884   2,195,987  
Net income 2,519,845 1,456,309 20,549,196 12,237,047
Other comprehensive income:        
Cumulative currency translation adjustments 828,537 461,820 3,004,411 301,931
Total comprehensive income $ 3,348,382 $ 1,918,129 $ 23,553,607 $ 12,538,978
Earnings per common stock- Basic (in dollars per share) $ 0.07 $ 0.04 $ 0.55 $ 0.33
Earnings per common stock - Diluted (in dollars per share) $ 0.07 $ 0.04 $ 0.54 $ 0.32
Weighted average common stock outstanding        
Basic (in shares) 37,239,536 37,239,536 37,239,536 37,239,536
Diluted (in shares) 37,473,911 37,901,089 37,749,587 37,793,370