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