Summary of Significant Accounting Policies (Narrative) (Details) $ in Thousands	3 Months Ended
	Jan. 31, 2016 USD ($) item	Jan. 31, 2015 USD ($) item	Oct. 31, 2015 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of major customers | item	0	0
Allowance for doubtful accounts	$ 111		$ 117
Inventory obsolescence reserve	280		288
Stock-based compensation	144	$ 113
Service Contracts [Member]
Summary Of Significant Accounting Policies [Line Items]
Deferred revenue	6,086		6,173
Installation And Training [Member]
Summary Of Significant Accounting Policies [Line Items]
Deferred revenue	416		412
Advance Payment From Customers [Member]
Summary Of Significant Accounting Policies [Line Items]
Deferred revenue	$ 109		$ 96
Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Intangible assets, useful lives	5 years
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Credit terms	30 days
Service terms	1 year
Intangible assets, useful lives	5 years
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Credit terms	60 days
Service terms	5 years
Intangible assets, useful lives	10 years
Maximum [Member] | Software [Member]
Summary Of Significant Accounting Policies [Line Items]
Intangible assets, useful lives	7 years