Note 4 - Goodwill	12 Months Ended
Mar. 31, 2024
Notes to Financial Statements
Goodwill Disclosure [Text Block]	4. Goodwill The guidance under ASC 805-30, Business Combinations, provides for the recognition of goodwill on the acquisition date measured as the excess of the aggregate consideration transferred over the net of the acquisition date amounts of net assets acquired and liabilities assumed. The Company's goodwill balance relates to the Neeltran acquisition in fiscal 2021, the NEPSI acquisition in fiscal 2020, and Infinia Technology Corporation acquisition in fiscal 2017 and is reported in the Grid business segment. Goodwill represents the difference between the purchase price and the fair value of the identifiable tangible and intangible net assets when accounted for using the purchase method of accounting. Goodwill is not amortized but reviewed for impairment. Goodwill is reviewed annually on February 28th and whenever events or changes in circumstances indicate that the carrying value of the goodwill might not be recoverable. There were no changes to Goodwill during either of the fiscal years ended March 31, 2024 and 2023. The Company performed its annual assessment of goodwill on February 29, 2024 and noted no triggering events from the analysis date to March 31, 2024 and determined that there was no impairment to goodwill. Additionally, no impairment resulted from the assessment performed in the fiscal year ended March 31, 2023.

Note 4 - Goodwill

12 Months Ended

Mar. 31, 2024

4. Goodwill

The guidance under ASC 805-30, Business Combinations, provides for the recognition of goodwill on the acquisition date measured as the excess of the aggregate consideration transferred over the net of the acquisition date amounts of net assets acquired and liabilities assumed. The Company's goodwill balance relates to the Neeltran acquisition in fiscal 2021, the NEPSI acquisition in fiscal 2020, and Infinia Technology Corporation acquisition in fiscal 2017 and is reported in the Grid business segment.

Goodwill represents the difference between the purchase price and the fair value of the identifiable tangible and intangible net assets when accounted for using the purchase method of accounting. Goodwill is not amortized but reviewed for impairment. Goodwill is reviewed annually on February 28th and whenever events or changes in circumstances indicate that the carrying value of the goodwill might not be recoverable. There were no changes to Goodwill during either of the fiscal years ended March 31, 2024 and 2023.

The Company performed its annual assessment of goodwill on February 29, 2024 and noted no triggering events from the analysis date to March 31, 2024 and determined that there was no impairment to goodwill. Additionally, no impairment resulted from the assessment performed in the fiscal year ended March 31, 2023.