Condensed Consolidated Statements of Income and Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2012	Jul. 31, 2011
Sales, net	$ 15,076,663	$ 12,376,352	$ 66,239,139	$ 53,875,101
Cost of goods sold	6,190,688	4,908,939	27,399,579	21,450,356
Gross profit	8,885,975	7,467,413	38,839,560	32,424,745
Operating and administrative expenses:
Sales and marketing	1,832,351	1,559,863	5,247,122	4,430,053
General and administrative	1,365,805	1,233,288	3,221,192	2,744,932
Research and development	1,900,363	1,686,677	2,928,875	2,585,863
Total operating expenses	5,098,519	4,479,828	11,397,189	9,760,848
Income from operations	3,787,456	2,987,585	27,442,371	22,663,897
Other income:
Interest income, net	44,153	34,144	109,079	81,286
Income before income tax expenses	3,831,609	3,021,729	27,551,450	22,745,183
Income tax expenses	576,071	501,884	4,138,559	2,195,987
Net income	3,255,538	2,519,845	23,412,891	20,549,196
Other comprehensive income:
Unrealized currency translation adjustments	143,931	828,537	819,577	3,004,411
Total comprehensive income	$ 3,399,469	$ 3,348,382	$ 24,232,468	$ 23,553,607
Earnings per common stock- Basic (in dollars per share)	$ 0.09	$ 0.07	$ 0.63	$ 0.55
Earnings per common stock - Diluted (in dollars per share)	$ 0.09	$ 0.07	$ 0.63	$ 0.54
Weighted average common stock outstanding
Basic (in shares)	37,239,536	37,239,536	37,239,536	37,239,536
Diluted (in shares)	37,239,536	37,473,911	37,239,536	37,749,587