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v3.25.1

Note 5 - Supplemental Balance Sheet Information (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
Notes Tables |
Schedule of Inventory, Current [Table Text Block] |
|  | March 31, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
Raw materials |  | $ | 34,173 |  |  | $ | 36,035 |
Work in process |  |  | 5,190 |  |  |  | 4,501 |
Finished goods |  |  | 8,490 |  |  |  | 10,827 |
Total |  | $ | 47,853 |  |  | $ | 51,363 |
Property, Plant and Equipment [Table Text Block] |
|  | March 31, |  |  | December 31, |
|  | 2025 |  |  | 2024 |
Land |  | $ | 1,273 |  |  | $ | 4,693 |
Buildings and leasehold improvements |  |  | 33,534 |  |  |  | 30,109 |
Machinery and equipment |  |  | 61,533 |  |  |  | 60,986 |
Furniture and fixtures |  |  | 3,073 |  |  |  | 3,067 |
Computer hardware and software |  |  | 8,052 |  |  |  | 7,990 |
Construction in process |  |  | 2,244 |  |  |  | 2,077 |
|  |  | 109,709 |  |  |  | 108,922 |
Less: Accumulated depreciation |  |  | (69,432 | ) |  |  | (68,437 | )
Property, plant and equipment, net |  | $ | 40,277 |  |  | $ | 40,485 |
Schedule of Goodwill [Table Text Block] |
|  | Battery & Energy |  |  | Communications |  |  |  |  |
|  | Products |  |  | Systems |  |  | Total |
Balance – December 31, 2024 |  | $ | 33,513 |  |  | $ | 11,493 |  |  | $ | 45,006 |
Effect of foreign currency translation |  |  | 135 |  |  |  | - |  |  |  | 135 |
Balance – March 31, 2025 |  | $ | 33,648 |  |  | $ | 11,493 |  |  | $ | 45,141 |
Schedule of Finite-Lived Intangible Assets [Table Text Block] |
|  | at March 31, 2025 |
|  |  |  |  |  | Accumulated |  |  |  |  |
|  | Cost |  |  | Amortization |  |  | Net |
Customer relationships |  | $ | 18,231 |  |  | $ | 7,580 |  |  | $ | 10,651 |
Trade names |  |  | 9,954 |  |  |  | 940 |  |  |  | 9,014 |
Patents and technology |  |  | 5,722 |  |  |  | 5,491 |  |  |  | 231 |
Trademarks |  |  | 3,399 |  |  |  | - |  |  |  | 3,399 |
Other |  |  | 1,500 |  |  |  | 610 |  |  |  | 890 |
Total other intangible assets |  | $ | 38,806 |  |  | $ | 14,621 |  |  | $ | 24,185 |
|  | at December 31, 2024 |
|  |  |  |  |  | Accumulated |  |  |  |  |
|  | Cost |  |  | Amortization |  |  | Net |
Customer relationships |  | $ | 18,154 |  |  | $ | 7,296 |  |  | $ | 10,858 |
Trade names |  |  | 9,942 |  |  |  | 813 |  |  |  | 9,129 |
Patents and technology |  |  | 5,690 |  |  |  | 5,428 |  |  |  | 262 |
Trademarks |  |  | 3,399 |  |  |  | - |  |  |  | 3,399 |
Other |  |  | 1,500 |  |  |  | 591 |  |  |  | 909 |
Total other intangible assets |  | $ | 38,685 |  |  | $ | 14,128 |  |  | $ | 24,557 |
Finite-Lived Intangible Assets Amortization Expense [Table Text Block] |
|  | Three-month period ended |
|  | March 31, 2025 |  |  | March 31, 2024 |
Selling, general and administrative expense |  | $ | 376 |  |  | $ | 203 |
Research and development expense |  |  | 29 |  |  |  | 25 |
Total |  | $ | 405 |  |  | $ | 228 |

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