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Note 11 - Segment Information - Net Sales by Geographic Area (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2026 | Mar. 31, 2025
Net sales |  | $ 9,206 | $ 10,737
UNITED STATES |  |  |
Net sales |  | 279 | 286
CANADA |  |  |
Net sales |  | 90 | 101
Peru and Colombia [Member] |  |  |
Net sales |  | 310 | 249
HONG KONG |  |  |
Net sales | [1] | 7,602 | 9,123
CHINA |  |  |
Net sales |  | 298 | 234
TAIWAN |  |  |
Net sales |  | 264 | 322
JAPAN |  |  |
Net sales |  | 48 | 64
Malaysia and Singapore [Member] |  |  |
Net sales |  | 51 | 50
Russia and Kazakhstan [Member] |  |  |
Net sales |  | 78 | 97
Europe [Member] |  |  |
Net sales |  | 142 | 150
Other Foreign Countries [Member] |  |  |
Net sales |  | $ 44 | $ 61
[1] | Substantially all of the Company's Hong Kong revenues are derived from the sale of products that are delivered to members in China. See “Item 1A. Risk Factors” in our most recent Annual Report on Form 10-K.

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