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Note 7 - Goodwill (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Goodwill, Acquired During Period |  |  | $ 13,245 |  |
Goodwill, Measurement Period Adjustment |  |  | (225) |  |
Goodwill, Impaired, Accumulated Impairment Loss | $ 700 |  | 700 |  | $ 700
Goodwill, Impairment Loss | $ 0 | $ 0 | 0 | $ 0 |
The 2025 Acquisitions [Member] |  |  |  |  |
Goodwill, Acquired During Period |  |  | 10,600 |  |
M.L.C. Plumbing, LLC [Member] |  |  |  |  |
Goodwill, Acquired During Period |  |  | 1,000 |  |
Roundhouse Electric & Equipment Co. Inc. [Member] |  |  |  |  |
Goodwill, Acquired During Period |  |  | 9,100 |  |
Advanced Plumbing and Drain [Member] |  |  |  |  |
Goodwill, Acquired During Period |  |  | 600 |  |
Southside Plumbing [Member] |  |  |  |  |
Goodwill, Acquired During Period |  |  | $ 2,600 |  |

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