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SEGMENT INFORMATION - Net Sales by Geographic Area (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |
Total net sales | $ 77,614 | $ 191,910
United States |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 2,003 | 3,637
Canada |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 1,048 | 1,710
Peru |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 2,380 | 1,635
Hong Kong |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 62,724 | 169,452
China |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 2,941 | 7,744
Taiwan |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 3,126 | 3,964
South Korea |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 368 | 493
Russia and Kazakhstan |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 980 | 868
Europe |  |
Segment Reporting Information [Line Items] |  |
Total net sales | 1,370 | 1,644
Other foreign countries |  |
Segment Reporting Information [Line Items] |  |
Total net sales | $ 674 | $ 763

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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