Note 10 - Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	Apr. 30, 2024	Oct. 31, 2023
Finite-Lived Intangible Assets, Net	$ 12,751	$ 13,595
Trademarks	1,174	1,174
Trademarks [Member]
Trademarks	1,174	1,174
Noncompete Agreements [Member]
Non-compete agreement (estimated life 5 years)	423	423
Accumulated amortization	(400)	(378)
Finite-Lived Intangible Assets, Net	23	45
Customer Relationships [Member]
Non-compete agreement (estimated life 5 years)	6,058	6,058
Accumulated amortization	(3,654)	(3,461)
Finite-Lived Intangible Assets, Net	2,404	2,597
Order or Production Backlog [Member]
Non-compete agreement (estimated life 5 years)	327	327
Accumulated amortization	(327)	(327)
Finite-Lived Intangible Assets, Net	0	0
Patents [Member]
Non-compete agreement (estimated life 5 years)	368	368
Accumulated amortization	(192)	(176)
Finite-Lived Intangible Assets, Net	176	192
Trade Names [Member]
Non-compete agreement (estimated life 5 years)	1,700	1,700
Accumulated amortization	(247)	(189)
Finite-Lived Intangible Assets, Net	1,453	1,511
Technology-Based Intangible Assets [Member]
Non-compete agreement (estimated life 5 years)	11,100	11,100
Accumulated amortization	(2,405)	(1,850)
Finite-Lived Intangible Assets, Net	$ 8,695	$ 9,250