Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Apr. 30, 2012	Oct. 31, 2011
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 32	$ 96
Inventories, obsolescence reserve	488	431
Property and equipment, accumulated depreciation	$ 3,861	$ 3,735
Common stock, par value	$ 0.1	$ 0.1
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	3,944,830	3,905,648
Common stock, shares outstanding	3,796,900	3,778,796
Undesignated shares, shares authorized	5,000,000	5,000,000
Undesignated shares, shares issued	0	0
Undesignated shares, shares outstanding	0	0