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Note 4 - Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Intangible Assets, Gross | $ 14,002 | $ 2,510
Intangible Assets, Accumulated amortization | (2,886) | (1,279)
Intangible assets, net | 11,116 | 1,231
Customer Relationships [Member] |  |
Intangible Assets, Gross | 9,409 | 1,378
Intangible Assets, Accumulated amortization | (1,417) | (827)
Intangible assets, net | 7,992 | 551
Trademarks and Trade Names [Member] |  |
Intangible Assets, Gross | 3,225 | 1,132
Intangible Assets, Accumulated amortization | (649) | (452)
Intangible assets, net | 2,576 | $ 680
Backlog [Member] |  |
Intangible Assets, Gross | 1,041 |
Intangible Assets, Accumulated amortization | (757) |
Intangible assets, net | 284 |
Other Intangible Assets [Member] |  |
Intangible Assets, Gross | 327 |
Intangible Assets, Accumulated amortization | (63) |
Intangible assets, net | $ 264 |

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