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Note 13 - Segment Information - Net Sales by Geographic Area (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Net sales |  | $ 49,134 | $ 60,005
UNITED STATES |  |  |
Net sales |  | 1,175 | 1,278
CANADA |  |  |
Net sales |  | 664 | 724
PERU |  |  |
Net sales |  | 1,417 | 2,281
HONG KONG |  |  |
Net sales | [1] | 38,436 | 46,699
CHINA |  |  |
Net sales |  | 2,017 | 2,237
TAIWAN |  |  |
Net sales |  | 2,493 | 2,706
JAPAN |  |  |
Net sales |  | 676 | 938
Russia and Kazakhstan [Member] |  |  |
Net sales |  | 559 | 854
Europe [Member] |  |  |
Net sales |  | 891 | 1,136
Other Foreign Countries [Member] |  |  |
Net sales |  | $ 806 | $ 1,152
[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”.

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