CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (USD $)	3 Months Ended
	Jan. 31, 2012	Jan. 31, 2011
Sales, net	$ 28,140,091	$ 22,625,060
Cost of goods sold	10,815,503	8,807,787
Gross profit	17,324,588	13,817,273
Operating and administrative expenses:
Sales and marketing	1,590,890	1,329,179
General and administrative	1,046,633	659,882
Research and development	236,415	180,674
Total operating expenses	2,873,938	2,169,735
Income from operations	14,450,650	11,647,538
Other income:
Interest income	32,107	24,189
Income before income tax expenses	14,482,757	11,671,727
Income tax expenses	2,175,525	723,432
Net income	12,307,232	10,948,295
Other comprehensive income:
Cumulative currency translation adjustments	1,485,999	664,421
Total comprehensive income	$ 13,793,231	$ 11,612,716
Earnings per common stock- Basic (in dollars per share)	$ 0.33	$ 0.29
Earnings per common stock - Diluted (in dollars per share)	$ 0.33	$ 0.29
Weighted average number of common stock outstanding
Basic (in shares)	37,239,536	37,239,536
Diluted (in shares)	37,243,559	37,895,878