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GEOGRAPHIC INFORMATION (Tables) | 12 Months Ended
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Dec. 31, 2020
Segment Reporting [Abstract] |
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] | The following table presents summary geographic information about revenues and long-lived assets (land and property, net of accumulated depreciation) attributed to countries based upon location of our customers or assets:
|  | Year ended December 31, |  |  | December 31, |
|  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |
|  |  |  |  |  |  |  |  |  | Long-lived |  |  | Long-lived |
|  | Revenues |  |  | Revenues |  |  | Assets |  |  | Assets |
United States |  | $ | 5,955,000 |  |  | $ | 5,809,000 |  |  | $ | 2,306,000 |  |  | $ | 2,411,000 |
South Korea |  |  | 460,000 |  |  |  | 650,000 |  |  |  | - |  |  |  | - |
China |  |  | 135,000 |  |  |  | 228,000 |  |  |  | 747,000 |  |  |  | 789,000 |
Taiwan |  |  | 11,000 |  |  |  | 45,000 |  |  |  | 164,000 |  |  |  | 186,000 |
Other foreign countries |  |  | 135,000 |  |  |  | 51,000 |  |  |  | - |  |  |  | - |
Total |  | $ | 6,696,000 |  |  | $ | 6,783,000 |  |  | $ | 3,217,000 |  |  | $ | 3,386,000 |

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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + 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 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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