CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2009
CONSOLIDATED CONDENSED STATEMENTS OF INCOME [Abstract]
Net revenue	$ 82,363	$ 68,565	$ 58,211
Cost of revenue	22,343	19,025	16,444
Gross margin	60,020	49,540	41,767
Operating expenses:
Selling, general and administrative	42,949	37,812	29,867
Research and development	4,709	4,393	3,798
Other	0	0	4,100
Operating expenses	47,658	42,205	37,765
Operating income	12,362	7,335	4,002
Interest income	311	284	920
Loss on sale of investments	0	0	(1,350)
Income before provision for income taxes	12,673	7,619	3,572
Provision for income taxes	4,212	2,743	866
Net income	$ 8,461	$ 4,876	$ 2,706
Basic earnings per share (in dollars per shares)	$ 0.74	$ 0.43	$ 0.23
Diluted earnings per share (in dollars per shares)	$ 0.73	$ 0.43	$ 0.23
Weighted average common shares outstanding:
- Basic (shares)	11,381	11,262	11,588
- Diluted (shares)	11,571	11,441	11,827