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Note 11 - Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands | Apr. 30, 2020 | Oct. 31, 2019
--- | --- | ---
Amortizable intangible assets, net | $ 3,527 | $ 1,092
Non-amortizable intangible assets, trademarks | 1,174 | 657
Noncompete Agreements [Member] |  |
Amortizable intangible assets, gross | 423 | 200
Accumulated amortization | (222) | (200)
Amortizable intangible assets, net | 201 |
Customer Relationships [Member] |  |
Amortizable intangible assets, gross | 5,058 | 2,879
Accumulated amortization | (2,126) | (1,884)
Amortizable intangible assets, net | 2,932 | 995
Order or Production Backlog [Member] |  |
Amortizable intangible assets, gross | 287 | 134
Accumulated amortization | (200) | (134)
Amortizable intangible assets, net | 87 |
Patents [Member] |  |
Amortizable intangible assets, gross | 368 | 142
Accumulated amortization | (61) | (45)
Amortizable intangible assets, net | $ 307 | $ 97

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