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Note 21 - Fair Value of Financial Instruments (Details Textual) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended | 24 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Oct. 31, 2024 | Sep. 30, 2025 | Dec. 31, 2024 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2023 | Aug. 14, 2025 | Aug. 01, 2025 | Jul. 31, 2025
Payment for Contingent Consideration Liability, Financing Activities |  |  |  |  | $ 420 | $ (0) |  |  |  |
Private Company Investments [Member] |  |  |  |  |  |  |  |  |  |
Equity Method Investment, Other-than-Temporary Impairment |  | $ 0 |  | $ 0 | 0 | $ 0 |  |  |  |
Southside Plumbing [Member] |  |  |  |  |  |  |  |  |  |
Subsidiary, Ownership Percentage, Noncontrolling Owner |  |  |  |  |  |  |  | 20.00% |  |
Ravix [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, High | $ 4,500 |  |  |  |  |  |  |  |  |
Payment for Contingent Consideration Liability, Financing Activities |  |  | $ 700 |  |  |  | $ 1,100 |  |  |
Business Combination, Contingent Consideration, Liability | $ 3,400 | $ 0 | 2,700 |  | $ 0 |  |  |  |  |
Business Combination, Contingent Consideration, Liability, Interest Rate |  | 6.00% |  |  | 6.00% |  |  |  |  |
Business Combination, Contingent Consideration, Accrued Interest |  | $ 0 | $ 100 |  | $ 0 |  |  |  |  |
CSuite Acquisition, LLC [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Change in Range of Outcomes, Contingent Consideration, Liability, Value, High |  |  |  |  | 3,600 |  |  |  |  |
Advanced Plumbing and Drain [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  | 800 |  |  | 800 |  |  |  | $ 800 |
Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount |  |  |  |  |  |  |  |  | $ 1,500 | $ 1,500
Southside Plumbing [Member] |  |  |  |  |  |  |  |  |  |
Business Combination, Contingent Consideration, Liability |  | $ 200 |  |  | $ 200 |  |  | $ 200 |  |
Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount |  |  |  |  |  |  |  | $ 1,125 |  |

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