Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Oct. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangible assets	7 years
Amortization expense	$ 7,000	$ 108,000
Estimated amortization expense	1,771,000		1,492,000
Development costs	300,000	185,000
Developed Technology, Patents and Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	21,000	108,000
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated amortization expense	97,000
Software Development [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangible assets	5 years
Amortization expense in cost of equipment, supplies and accessories	14,000
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangible assets	10 years
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangible assets	5 years
Software [Member] | Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated amortization expense	$ 1,046,000