Intangible Assets (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands	Jan. 31, 2016	Oct. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 11,514	$ 11,352
Less: accumulated amortization	(7,113)	(7,047)
Intangible assets, net	4,401	4,305
Developed Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	7,772	7,771
Customer And Distributor Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	369	375
Trademarks And Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	251	254
Software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	247	247
Capitalized Software In Progress [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$ 2,875	$ 2,705