Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012	Oct. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives of intangible assets			7 years
Amortization expense	$ 5,000	$ 112,000	$ 16,000	$ 329,000
Estimated amortization expense	2,071,000		2,071,000		1,492,000
Capitalized software development costs during period	153,000	216,000	619,000	576,000
Developed Technology, Patents and Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	33,000	112,000	86,000	329,000
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Estimated amortization expense	143,000		143,000
Software Development [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense in cost of equipment, supplies and accessories	28,000		70,000
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	$ 1,364,000		$ 1,364,000