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SEGMENT INFORMATION - Long-live Assets by Geographic Area (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
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Segment Reporting Information [Line Items] |  |
Total long-lived assets | $ 735 | $ 934
United States |  |
Segment Reporting Information [Line Items] |  |
Total long-lived assets | 379 | 521
Hong Kong |  |
Segment Reporting Information [Line Items] |  |
Total long-lived assets | 135 | 145
China |  |
Segment Reporting Information [Line Items] |  |
Total long-lived assets | 57 | 61
Other foreign countries |  |
Segment Reporting Information [Line Items] |  |
Total long-lived assets | $ 164 | $ 207

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- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
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Period Type: |

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- Details
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