Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Revenue:
Product leases and royalties	$ 29,352	$ 25,953
Product sales and service	29,432	30,100
Total revenue	58,784	56,053
Costs and expenses:
Cost of leases and royalties	9,872	8,951
Cost of sales and service	11,040	11,281
Gross profit	37,872	35,821
Selling, general and administrative	20,046	17,180
Research and development	8,247	7,527
Total costs and expenses	49,205	44,939
Income from operations	9,579	11,114
Other income (expense):
Interest income	154	139
Interest expense	(224)	(477)
Other, net	(45)	175
Total other income (expense)	(115)	(163)
Income from operations before tax	9,464	10,951
Income tax provision	2,400	3,302
Net income	$ 7,064	$ 7,649
Basic earnings per share: (in Dollars per share)	$ 0.12	$ 0.14
Diluted earnings per share: (in Dollars per share)	$ 0.12	$ 0.14
Weighted average shares outstanding:
Basic (in Shares)	56,680	55,064
Diluted (in Shares)	57,361	55,653