Note 2 - Acquisitions	9 Months Ended
Sep. 30, 2024
Notes to Financial Statements
Business Combination Disclosure [Text Block]	2. Acquisitions **Fiscal 2024* Acquisitions*** On August 1, 2024, the Company acquired the assets and liabilities of Ageto. Ageto designs and integrates microgrid energy and control management systems and is headquartered in Fort Collins, Colorado. On June 26, 2024, the Company closed on the acquisition of the C&I BESS product offering from SunGrid Solutions Inc. located in Cambridge, Canada. On April 1, 2024, the Company acquired Huntington, headquartered in Shelton, Connecticut. Huntington is an industrial and residential generator distributor as well as a provider of maintenance and repair services. The combined preliminary purchase price for these acquisitions is $30,449, net of cash acquired and inclusive of holdbacks and estimated contingent consideration. The Company recorded its preliminary purchase price allocation based on its estimates of the fair value of the acquired assets and assumed liabilities. Purchase accounting for C&I BESS and Huntington will be finalized prior to June 30, 2025, while purchase accounting for Ageto will be finalized prior to September 30, 2025. There have not been any material changes to the preliminary purchase price allocation for Ageto, C&I BESS, or Huntington as of September 30, 2024. The accompanying condensed consolidated financial statements include the results of Ageto, C&I BESS, and Huntington from their dates of acquisition through September 30, 2024. Pro forma and other financial information are not presented as the effects of these acquisitions are not material to the Company's results of operations or financial position. **Fiscal 2023* Acquisitions*** On February 1, 2023, the Company acquired REFUstor, headquartered in Pfullingen, Germany. REFUstor is a developer and supplier of battery storage hardware products, advanced software, and platform services for the C&I energy storage market. The Company recorded its preliminary purchase price allocation for REFUstor during the first quarter of 2023, based on its estimates of the fair value of the acquired assets and assumed liabilities. Purchase accounting for REFUstor was finalized in the first quarter of 2024 and did not result in material adjustments to the Company's preliminary estimates. The final purchase price is not material to the Company's condensed consolidated financial statements. The accompanying condensed consolidated financial statements include the results of REFUstor from the date of acquisition through September 30, 2024. Pro forma and other financial information are not presented as the effects of the REFUstor acquisition are not material to the Company's results of operations or financial position.

Note 2 - Acquisitions

9 Months Ended

Sep. 30, 2024

Business Combination Disclosure [Text Block]

2. Acquisitions

Fiscal 2024 Acquisitions

On August 1, 2024, the Company acquired the assets and liabilities of Ageto. Ageto designs and integrates microgrid energy and control management systems and is headquartered in Fort Collins, Colorado.

On June 26, 2024, the Company closed on the acquisition of the C&I BESS product offering from SunGrid Solutions Inc. located in Cambridge, Canada.

On April 1, 2024, the Company acquired Huntington, headquartered in Shelton, Connecticut. Huntington is an industrial and residential generator distributor as well as a provider of maintenance and repair services.

The combined preliminary purchase price for these acquisitions is $30,449, net of cash acquired and inclusive of holdbacks and estimated contingent consideration. The Company recorded its preliminary purchase price allocation based on its estimates of the fair value of the acquired assets and assumed liabilities. Purchase accounting for C&I BESS and Huntington will be finalized prior to June 30, 2025, while purchase accounting for Ageto will be finalized prior to September 30, 2025. There have not been any material changes to the preliminary purchase price allocation for Ageto, C&I BESS, or Huntington as of September 30, 2024.

The accompanying condensed consolidated financial statements include the results of Ageto, C&I BESS, and Huntington from their dates of acquisition through September 30, 2024. Pro forma and other financial information are not presented as the effects of these acquisitions are not material to the Company's results of operations or financial position.

Fiscal 2023 Acquisitions

On February 1, 2023, the Company acquired REFUstor, headquartered in Pfullingen, Germany. REFUstor is a developer and supplier of battery storage hardware products, advanced software, and platform services for the C&I energy storage market.

The Company recorded its preliminary purchase price allocation for REFUstor during the first quarter of 2023, based on its estimates of the fair value of the acquired assets and assumed liabilities. Purchase accounting for REFUstor was finalized in the first quarter of 2024 and did not result in material adjustments to the Company's preliminary estimates. The final purchase price is not material to the Company's condensed consolidated financial statements. The accompanying condensed consolidated financial statements include the results of REFUstor from the date of acquisition through September 30, 2024. Pro forma and other financial information are not presented as the effects of the REFUstor acquisition are not material to the Company's results of operations or financial position.