Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Segment Information - Net Sales by Geographic Area (Details)

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Note 10 - Segment Information - Net Sales by Geographic Area (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Net sales $ 16,404 $ 23,428 $ 31,352 $ 42,756
UNITED STATES        
Net sales 372 514 863 1,055
CANADA        
Net sales 143 210 404 496
PERU        
Net sales 238 669 598 1,357
HONG KONG        
Net sales [1] 13,693 19,524 25,106 34,890
CHINA        
Net sales 818 557 1,516 1,613
TAIWAN, PROVINCE OF CHINA        
Net sales 550 1,057 1,490 1,691
KOREA, REPUBLIC OF        
Net sales 41 84 168 190
Russia and Kazakhstan [Member]        
Net sales 170 200 412 418
Europe [Member]        
Net sales 255 331 488 674
Other Foreign Countries [Member]        
Net sales $ 124 $ 282 $ 307 $ 372
[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.