Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jul. 31, 2017	Oct. 31, 2016
Consolidated Balance Sheets [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 177	$ 92
Inventories, obsolescence reserve	1,279	1,281
Property and equipment, accumulated depreciation	$ 5,152	$ 4,754
Common stock, par value	$ 0.10	$ 0.10
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	4,438,634	4,378,811
Common stock, shares outstanding	4,409,088	4,337,314
Undesignated shares, shares authorized	5,000,000	5,000,000
Undesignated shares, shares issued	0	0
Undesignated shares, shares outstanding	0	0