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Note 21 - Fair Value of Financial Instruments - Fair Values for Level 3 Measurements (Details) - Fair Value, Inputs, Level 3 [Member] - Fair Value, Nonrecurring [Member] $ in Thousands | Sep. 30, 2025 USD ($)
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Roundhouse Electric & Equipment Co. Inc. [Member] | Trade Names [Member] |
Indefinite-lived assets, fair value | $ 1,220
Roundhouse Electric & Equipment Co. Inc. [Member] | Relief from Royalty [Member] | Measurement Input, Royalty Rate [Member] | Trade Names [Member] |
Indefinite-lived intangible assets, measurement input | 0.015
Advanced Plumbing and Drain [Member] | Trade Names [Member] |
Indefinite-lived assets, fair value | $ 1,600
Advanced Plumbing and Drain [Member] | Relief from Royalty [Member] | Measurement Input, Royalty Rate [Member] | Trade Names [Member] |
Indefinite-lived intangible assets, measurement input | 0.03
Southside Plumbing [Member] | Trade Names [Member] |
Indefinite-lived assets, fair value | $ 1,100
Southside Plumbing [Member] | Relief from Royalty [Member] | Measurement Input, Royalty Rate [Member] | Trade Names [Member] |
Indefinite-lived intangible assets, measurement input | 0.03
Image Solutions, LLC [Member] | Trade Names [Member] |
Indefinite-lived assets, fair value | $ 1,500
Image Solutions, LLC [Member] | Relief from Royalty [Member] | Measurement Input, Royalty Rate [Member] | Trade Names [Member] |
Indefinite-lived intangible assets, measurement input | 0.02
M.L.C. Plumbing, LLC [Member] | Trade Names [Member] |
Indefinite-lived assets, fair value | $ 3,100
M.L.C. Plumbing, LLC [Member] | Relief from Royalty [Member] | Measurement Input, Discount Rate [Member] | Trade Names [Member] |
Indefinite-lived intangible assets, measurement input | 0.17
M.L.C. Plumbing, LLC [Member] | Relief from Royalty [Member] | Measurement Input, Royalty Rate [Member] | Trade Names [Member] |
Indefinite-lived intangible assets, measurement input | 0.05
Customer Relationships [Member] | Roundhouse Electric & Equipment Co. Inc. [Member] |
Finite-lived assets, fair value | $ 11,000
Customer Relationships [Member] | Roundhouse Electric & Equipment Co. Inc. [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Long-Term Revenue Growth Rate [Member] |
Finite-lived intangible assets, measurement input | 0.09
Customer Relationships [Member] | Roundhouse Electric & Equipment Co. Inc. [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Attrition Rate [Member] |
Finite-lived intangible assets, measurement input | 0.21
Customer Relationships [Member] | Roundhouse Electric & Equipment Co. Inc. [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Discount Rate [Member] |
Finite-lived intangible assets, measurement input | 0.20
Customer Relationships [Member] | Advanced Plumbing and Drain [Member] |
Finite-lived assets, fair value | $ 1,100
Customer Relationships [Member] | Advanced Plumbing and Drain [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Long-Term Revenue Growth Rate [Member] |
Finite-lived intangible assets, measurement input | 0.03
Customer Relationships [Member] | Advanced Plumbing and Drain [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Attrition Rate [Member] |
Finite-lived intangible assets, measurement input | 0.17
Customer Relationships [Member] | Advanced Plumbing and Drain [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Discount Rate [Member] |
Finite-lived intangible assets, measurement input | 0.16
Customer Relationships [Member] | Southside Plumbing [Member] |
Finite-lived assets, fair value | $ 1,000
Customer Relationships [Member] | Southside Plumbing [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Long-Term Revenue Growth Rate [Member] |
Finite-lived intangible assets, measurement input | 0.05
Customer Relationships [Member] | Southside Plumbing [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Attrition Rate [Member] |
Finite-lived intangible assets, measurement input | 0.15
Customer Relationships [Member] | Southside Plumbing [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Discount Rate [Member] |
Finite-lived intangible assets, measurement input | 0.14
Customer Relationships [Member] | Image Solutions, LLC [Member] |
Finite-lived assets, fair value | $ 11,100
Customer Relationships [Member] | Image Solutions, LLC [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Long-Term Revenue Growth Rate [Member] |
Finite-lived intangible assets, measurement input | 0.03
Customer Relationships [Member] | Image Solutions, LLC [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Attrition Rate [Member] |
Finite-lived intangible assets, measurement input | 0.02
Customer Relationships [Member] | Image Solutions, LLC [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Discount Rate [Member] |
Finite-lived intangible assets, measurement input | 0.25
Customer Relationships [Member] | M.L.C. Plumbing, LLC [Member] |
Finite-lived assets, fair value | $ 500
Customer Relationships [Member] | M.L.C. Plumbing, LLC [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Long-Term Revenue Growth Rate [Member] |
Finite-lived intangible assets, measurement input | 0.03
Customer Relationships [Member] | M.L.C. Plumbing, LLC [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Attrition Rate [Member] |
Finite-lived intangible assets, measurement input | 0.30
Customer Relationships [Member] | M.L.C. Plumbing, LLC [Member] | Multi-period Excess Earnings [Member] | Measurement Input, Discount Rate [Member] |
Finite-lived intangible assets, measurement input | 0.18

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- Definition Fair value portion of assets, excluding financial assets, that lack physical substance, having a limited useful life. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-13 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E + Details
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