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Note 10 - Segment Information (Tables) | 6 Months Ended
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Jun. 30, 2020
Notes Tables |
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Net sales: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Primary Reporting Segment |  | $ | 15,416 |  |  | $ | 22,671 |  |  | $ | 29,424 |  |  | $ | 40,725 |
China |  |  | 818 |  |  |  | 557 |  |  |  | 1,516 |  |  |  | 1,613 |
Russia and Kazakhstan |  |  | 170 |  |  |  | 200 |  |  |  | 412 |  |  |  | 418 |
Total net sales |  | $ | 16,404 |  |  | $ | 23,428 |  |  | $ | 31,352 |  |  | $ | 42,756 |
Income (loss) from operations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Primary Reporting Segment |  | $ | 2,008 |  |  | $ | 3,710 |  |  | $ | 3,323 |  |  | $ | 4,532 |
China |  |  | 13 |  |  |  | (424 | ) |  |  | (70 | ) |  |  | (735 | )
Russia and Kazakhstan |  |  | 104 |  |  |  | (31 | ) |  |  | 22 |  |  |  | (56 | )
Total income from operations for reportable segments |  |  | 2,125 |  |  |  | 3,255 |  |  |  | 3,275 |  |  |  | 3,741 |
Unallocated corporate expenses |  |  | (1,942 | ) |  |  | (3,259 | ) |  |  | (4,540 | ) |  |  | (6,454 | )
Other income, net |  |  | 125 |  |  |  | 373 |  |  |  | 218 |  |  |  | 805 |
Income (loss) before income taxes |  | $ | 308 |  |  | $ | 369 |  |  | $ | (1,047 | ) |  | $ | (1,908 | )
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block] |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
Net sales from external customers: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 372 |  |  | $ | 514 |  |  | $ | 863 |  |  | $ | 1,055 |
Canada |  |  | 143 |  |  |  | 210 |  |  |  | 404 |  |  |  | 496 |
Peru |  |  | 238 |  |  |  | 669 |  |  |  | 598 |  |  |  | 1,357 |
Hong Kong1 |  |  | 13,693 |  |  |  | 19,524 |  |  |  | 25,106 |  |  |  | 34,890 |
China |  |  | 818 |  |  |  | 557 |  |  |  | 1,516 |  |  |  | 1,613 |
Taiwan |  |  | 550 |  |  |  | 1,057 |  |  |  | 1,490 |  |  |  | 1,691 |
South Korea |  |  | 41 |  |  |  | 84 |  |  |  | 168 |  |  |  | 190 |
Russia and Kazakhstan |  |  | 170 |  |  |  | 200 |  |  |  | 412 |  |  |  | 418 |
Europe |  |  | 255 |  |  |  | 331 |  |  |  | 488 |  |  |  | 674 |
Other foreign countries |  |  | 124 |  |  |  | 282 |  |  |  | 307 |  |  |  | 372 |
Total net sales |  | $ | 16,404 |  |  | $ | 23,428 |  |  | $ | 31,352 |  |  | $ | 42,756 |

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