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, 2016	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Equity [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount									53	143	225
Net income available to common stockholders	$ 5,265	$ (678)	$ 4,209	$ (5,127)	$ (4,917)	$ 1,862	$ 6,037	$ 2,923	$ 3,669	$ 5,905	$ 19,915
Basic weighted average number of common shares	17,614	17,614	17,615	17,342	17,292	17,227	17,211	17,215	17,513	17,287	17,145
Restricted stock units and stock options									13	23	70
Diluted weighted average number of common shares	17,629	17,614	17,620	17,342	17,292	17,246	17,236	17,255	17,526	17,310	17,215
Basic earnings per share	$ 0.31	$ (0.04)	$ 0.24	$ (0.30)	$ (0.29)	$ 0.11	$ 0.35	$ 0.17	$ 0.21	$ 0.342	$ 1.162
Diluted earnings per share	$ 0.31	$ (0.04)	$ 0.24	$ (0.30)	$ (0.29)	$ 0.11	$ 0.35	$ 0.17	$ 0.21	$ 0.341	$ 1.157