Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Oct. 31, 2017	$ 188,321	$ 231	$ 112,351	$ 117,976	$ (42,237)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	8,883	0	0	8,883	0
Other comprehensive income, net of tax	1,458	0	0	0	1,458
Restricted stock and exercise of stock options	34	3	31	0	0
Stock-based compensation cost	1,042	0	1,042	0	0
Ending Balance at Apr. 30, 2018	199,738	234	113,424	126,859	(40,779)
Beginning Balance at Jan. 31, 2018	202,397	233	112,865	122,834	(33,535)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,025	0	0	4,025	0
Other comprehensive income, net of tax	(7,244)	0	0	0	(7,244)
Restricted stock and exercise of stock options	34	1	33	0	0
Stock-based compensation cost	526	0	526	0	0
Ending Balance at Apr. 30, 2018	199,738	234	113,424	126,859	(40,779)
Beginning Balance at Oct. 31, 2018	199,522	234	114,405	135,813	(50,930)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	(3,586)	0	0	(3,586)	0
Other comprehensive income, net of tax	(1,773)	0	0	0	(1,773)
Restricted stock and exercise of stock options	0	4	(4)	0	0
Stock-based compensation cost	990	0	990	0	0
Ending Balance at Apr. 30, 2019	195,153	238	115,391	132,227	(52,703)
Beginning Balance at Jan. 31, 2019	197,940	237	114,947	131,115	(48,359)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,112	0	0	1,112	0
Other comprehensive income, net of tax	(4,344)	0	0	0	(4,344)
Restricted stock and exercise of stock options	0	1	(1)	0	0
Stock-based compensation cost	445	0	445	0	0
Ending Balance at Apr. 30, 2019	$ 195,153	$ 238	$ 115,391	$ 132,227	$ (52,703)