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Note 2 - Acquisition - Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Oct. 31, 2024 | Dec. 31, 2023
--- | --- | --- | ---
Goodwill | $ 45,006 |  | $ 37,571
Electrochem Solutions, Inc. [Member] |  |  |
Accounts receivable |  | $ 5,270 |
Inventories |  | 9,172 |
Prepaid expenses and other current assets |  | 251 |
Property, plant and equipment |  | 20,735 |
Goodwill |  | 7,558 |
Other intangible assets |  | 10,500 |
Other noncurrent assets |  | 237 |
Accounts payable |  | (2,231) |
Accrued compensation and related benefits |  | (1,561) |
Accrued expenses and other current liabilities |  | (904) |
Deferred tax liability, net |  | (748) |
Other noncurrent liabilities |  | (257) |
Net assets acquired |  | $ 48,022 |

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