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Note 3 - Supplemental Balance Sheet Information (Tables) | 12 Months Ended
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Dec. 31, 2014
Note 3 - Supplemental Balance Sheet Information |
Inventory |
|  | December 31,
|  | 2014 |  | 2013
Raw materials |  | $ | 15,100 |  |  | $ | 16,239 |
Work in process |  |  | 1,489 |  |  |  | 1,674 |
Finished products |  |  | 9,497 |  |  |  | 8,140 |
Total |  | $ | 26,086 |  |  | $ | 26,053 |
Major classes of property, plant and equipment |
|  | December 31,
|  | 2014 |  | 2013
Land |  | $ | 123 |  |  | $ | 123 |
Buildings and leasehold improvements |  |  | 7,437 |  |  |  | 7,412 |
Machinery and equipment |  |  | 48,054 |  |  |  | 47,405 |
Furniture and fixtures |  |  | 1,811 |  |  |  | 1,866 |
Computer hardware and software |  |  | 4,452 |  |  |  | 4,247 |
Construction in progress |  |  | 1,351 |  |  |  | 1,073 |
|  |  | 63,228 |  |  |  | 62,126 |
Less – Accumulated depreciation |  |  | (53,416 | ) |  |  | (51,924 | )
Total |  | $ | 9,812 |  |  | $ | 10,202 |
Goodwill activity by segment |
|  | Battery & Energy Products |  | Communi- cations Systems |  | Total
Balance – January 1, 2013 |  | $ | 4,851 |  |  | $ | 11,493 |  |  | $ | 16,344 |
Effect of foreign currency translation |  |  | 75 |  |  |  | — |  |  |  | 75 |
Balance – December 31, 2013 |  |  | 4,926 |  |  |  | 11,493 |  |  |  | 16,419 |
Effect of foreign currency translation |  |  | (12 | ) |  |  | — |  |  |  | (12 | )
Balance – December 31, 2014 |  | $ | 4,914 |  |  | $ | 11,493 |  |  | $ | 16,407 |
Composition of intangible assets |
|  | December 31, 2014
|  | Cost |  | Accumulated Amortization |  | Net
Trademarks |  | $ | 3,567 |  |  | $ | — |  |  | $ | 3,567 |
Patents and technology |  |  | 4,509 |  |  |  | 4,114 |  |  |  | 395 |
Customer relationships |  |  | 4,029 |  |  |  | 3,679 |  |  |  | 350 |
Distributor relationships |  |  | 391 |  |  |  | 365 |  |  |  | 26 |
Total other intangible assets |  | $ | 12,496 |  |  | $ | 8,158 |  |  | $ | 4,338 |
|  | December 31, 2013
|  | Cost |  | Accumulated Amortization |  | Net
Trademarks |  | $ | 3,568 |  |  | $ | — |  |  | $ | 3,568 |
Patents and technology |  |  | 4,511 |  |  |  | 3,941 |  |  |  | 570 |
Customer relationships |  |  | 4,033 |  |  |  | 3,562 |  |  |  | 471 |
Distributor relationships |  |  | 393 |  |  |  | 356 |  |  |  | 37 |
Total other intangible assets |  | $ | 12,505 |  |  | $ | 7,859 |  |  | $ | 4,646 |
Amortization of intangible assets |
|  | Year ended December 31,
|  | 2014 |  | 2013
Research and development expense |  | $ | 176 |  |  | $ | 223 |
Selling, general and administrative expense |  |  | 129 |  |  |  | 179 |
Total |  | $ | 305 |  |  | $ | 402 |

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