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v3.19.1

Note 8 - Geographic Information and Major Customer Data (Tables) | 3 Months Ended
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Mar. 31, 2019
Notes Tables |
Revenue from External Customers by Geographic Areas [Table Text Block] |
|  | Three months ended March 3 1 , |
|  | 201 9 (unaudited) |  |  | 201 8 (unaudited) |
Revenues based on customer location: |  |  |  |  |  |  |  |
United States |  | $ | 1,779 |  |  | $ | 1,707 |
Europe and Middle East (1) |  |  | 3,342 |  |  |  | 2,453 |
Asia Pacific (2) (3) (4) |  |  | 11,848 |  |  |  | 13,409 |
|  | $ | 16,969 |  |  | $ | 17,569 |
(1) Germany |  | $ | 2,589 |  |  |  | *) |
(2) China |  | $ | 7,243 |  |  | $ | 6,152 |
(3) S. Korea |  | $ | 1,767 |  |  | $ | 2,802 |
(4) Japan |  | $ | 2,647 |  |  | $ | 2,624 |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | Three months ended March 3 1 , |
|  | 201 9 (unaudited) |  |  | 201 8 (unaudited) |
Customer A |  |  | 21 | % |  |  | *) |
Customer B |  |  | 12 | % |  |  | 16 | %
Customer C |  |  | 12 | % |  |  | *) |
Customer D |  |  | 10 | % |  |  | *) |
Customer E |  |  | *) |  |  |  | 15 | %

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