Net Income (Loss) per Share (Schedule of Shares Used in Income per Share Computations) (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2017	Jul. 31, 2016
Net Income (Loss) per Share [Abstract]
Weighted average common shares outstanding - basic	4,405	4,329	4,376	4,305
Dilutive effect of stock options, warrants and unvested restricted shares	35	10	45	9
Weighted average common shares outstanding - diluted	4,440	4,339	4,421	4,314