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Note 13 - Commitments and Contingencies (Details Textual) - Aquana, LLC [Member] - USD ($) $ in Thousands | 1 Months Ended |
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Jul. 31, 2021 | Mar. 31, 2023
Business Combination, Contingent Consideration, Earn Out Period (Year) | 6 years |
Business Combination, Required Continued Employment of Key Employees, Period (Year) | 4 years |
Business Combination, Contingent Consideration, Liability, Total |  | $ 0

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- Definition Period for earn out of contingent consideration of a business combination. + References No definition available. + Details
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- Definition Period for required continued employment of key employees in a business acquisition. + References No definition available. + Details
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- Definition Amount of liability recognized arising from contingent consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479581/805-30-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479668/805-30-25-6 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 35 -Paragraph 1 -Subparagraph (b) -SubTopic 30 -Topic 805 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479613/805-30-35-1 + Details
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- Details
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