Note 11 - Segment Information - Operating Information by Geographic Area (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2023 |
Mar. 31, 2022 |
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| Net sales | $ 11,861 | $ 11,546 |
| Income (loss) from operations | (394) | (383) |
| Other income, net | 681 | 110 |
| Income (loss) before income taxes | 287 | (273) |
| Operating Segments [Member] | ||
| Income (loss) from operations | 1,749 | 1,876 |
| Intersegment Eliminations [Member] | ||
| Income (loss) from operations | (2,143) | (2,259) |
| CHINA | ||
| Net sales | 416 | 481 |
| CHINA | Operating Segments [Member] | ||
| Income (loss) from operations | (20) | 8 |
| Russia and Kazakhstan [Member] | ||
| Net sales | 114 | 188 |
| Russia and Kazakhstan [Member] | Operating Segments [Member] | ||
| Income (loss) from operations | (58) | (47) |
| Primary Reporting Segment [Member] | ||
| Net sales | 11,331 | 10,877 |
| Primary Reporting Segment [Member] | Operating Segments [Member] | ||
| Income (loss) from operations | $ 1,827 | $ 1,915 |
| X | ||||||||||
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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