Quarterly report [Sections 13 or 15(d)]

Note 11 - Segment Information - Net Sales by Geographic Area (Details)

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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.