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, 2019	Jul. 31, 2019	Apr. 30, 2019	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income available to common stockholders	$ (13,652)	$ (2,709)	$ 1,112	$ (4,698)	$ (8,456)	$ 11,052	$ 4,025	$ 4,858	$ (19,947)	$ 11,479	$ (697)
Basic weighted average number of common shares	23,566	23,557	23,516	23,385	23,309	23,278	23,222	23,107	23,506	23,229	19,233
Restricted stock units and stock options									0	140	0
Diluted weighted average number of common shares	23,566	23,557	23,559	23,385	23,309	23,453	23,357	23,287	23,506	23,369	19,233
Basic earnings (loss) per share	$ (0.59)	$ (0.11)	$ 0.05	$ (0.20)	$ (0.36)	$ 0.47	$ 0.17	$ 0.21	$ (0.85)	$ 0.49	$ (0.04)
Diluted earnings (loss) per share	$ (0.59)	$ (0.11)	$ 0.05	$ (0.20)	$ (0.36)	$ 0.47	$ 0.17	$ 0.21	$ (0.85)	$ 0.49	$ (0.04)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount									169	80	68