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Note 5 - Acquisitions and Discontinued Operations - Assets Acquired and Liabilities Assumed - AAA Advanced Plumbing and Drain (Details) - USD ($) $ in Thousands | Aug. 01, 2025 | Jul. 31, 2025 | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | --- | --- | ---
Goodwill |  |  | $ 69,544 | $ 56,524
Advanced Plumbing and Drain [Member] |  |  |  |
Cash paid at closing |  | $ 2,652 |  |
Total purchase price | $ 3,900 | 3,862 |  |
Preliminary purchase price | 3,900 | 3,862 |  |
Cash and cash equivalents |  | 23 |  |
Property and equipment, net |  | 610 |  |
Intangible asset not subject to amortization |  | 1,600 |  |
Intangible asset subject to amortization |  | 1,100 |  |
Other assets - inventory and prepaid expenses |  | 143 |  |
Total assets |  | 3,985 |  |
Accrued expenses and other liabilities |  | 717 |  |
Total liabilities |  | 717 |  |
Total identifiable assets and liabilities |  | 3,268 |  |
Goodwill | 600 | 594 |  |
Advanced Plumbing and Drain [Member] | Service Fee Receivable [Member] |  |  |  |
Business Combination, Recognized Asset Acquired, Receivable, Current | $ 500 | 503 |  |
Advanced Plumbing and Drain [Member] | Other Receivables [Member] |  |  |  |
Business Combination, Recognized Asset Acquired, Receivable, Current |  | 6 |  |
Advanced Plumbing and Drain [Member] | Seller Note [Member] |  |  |  |
Liability incurred |  | 420 |  |
Advanced Plumbing and Drain [Member] | Contingent Consideration Liability [Member] |  |  |  |
Liability incurred |  | $ 790 |  |

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