Earnings Per Share Reconciliation of Numerator and Denominator of the basic and diluted earnings per share computation (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 31, 2017	Jul. 31, 2017	Apr. 30, 2017	Jan. 31, 2017	Oct. 31, 2016	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Equity [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount									68	53	143
Net income available to common stockholders	$ (926)	$ (1,982)	$ 4,229	$ (2,018)	$ 5,265	$ (678)	$ 4,209	$ (5,127)	$ (697)	$ 3,669	$ 5,905
Basic weighted average number of common shares	23,055	18,559	17,858	17,720	17,614	17,614	17,615	17,342	19,233	17,513	17,287
Restricted stock units and stock options (1)									0	13	23
Diluted weighted average number of common shares	23,055	18,559	17,888	17,720	17,629	17,614	17,620	17,342	19,233	17,526	17,310
Basic income (loss) per share	$ (0.04)	$ (0.11)	$ 0.24	$ (0.11)	$ 0.31	$ (0.04)	$ 0.24	$ (0.30)	$ (0.04)	$ 0.21	$ 0.34
Diluted income (loss) per share	$ (0.04)	$ (0.11)	$ 0.24	$ (0.11)	$ 0.31	$ (0.04)	$ 0.24	$ (0.30)	$ (0.04)	$ 0.21	$ 0.34