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Note 11 - Segment Information - Net Sales by Geographic Area (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Net sales |  | $ 10,511 | $ 13,360 | $ 22,372 | $ 24,906
UNITED STATES |  |  |  |  |
Net sales |  | 272 | 272 | 551 | 528
CANADA |  |  |  |  |
Net sales |  | 157 | 164 | 327 | 301
PERU |  |  |  |  |
Net sales |  | 483 | 327 | 810 | 809
HONG KONG |  |  |  |  |
Net sales | [1] | 8,306 | 10,716 | 17,979 | 19,492
CHINA |  |  |  |  |
Net sales |  | 247 | 486 | 663 | 967
TAIWAN |  |  |  |  |
Net sales |  | 454 | 624 | 908 | 1,193
JAPAN |  |  |  |  |
Net sales |  | 107 | 136 | 189 | 371
Malaysia and Singapore [Member] |  |  |  |  |
Net sales |  | 68 | 95 | 153 | 220
Russia and Kazakhstan [Member] |  |  |  |  |
Net sales |  | 125 | 104 | 239 | 292
Europe [Member] |  |  |  |  |
Net sales |  | 199 | 304 | 385 | 505
Other Foreign Countries [Member] |  |  |  |  |
Net sales |  | $ 93 | $ 132 | $ 168 | $ 228
[1] | Substantially all of our Hong Kong revenues are derived from the sale of products that are delivered to members in China. See “Item 1A. Risk Factors” in this report and in our most recent Annual Report on Form 10-K.

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