Earnings Per Share 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		6 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		7	308
Net income available to common stockholders	$ 4,025	$ 4,229	$ 8,883	$ 2,211
Basic weighted average number of common shares	23,222	17,858	23,164	17,788
Restricted stock units and stock options (1)	135	30	147	21
Diluted weighted average number of common shares	23,357	17,888	23,311	17,809
Basic earnings per share	$ 0.17	$ 0.24	$ 0.38	$ 0.12
Diluted earnings per share	$ 0.17	$ 0.24	$ 0.38	$ 0.12