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Note 4 - Revenue From Contracts With Customers (Tables) | 6 Months Ended
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Jun. 30, 2019
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2019 |  |  | 201 8 |  |  | 201 9 |  |  | 201 8 |
Net revenues by customer type: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
End user |  | $ | 13,106 |  |  | $ | 18,173 |  |  | $ | 29,143 |  |  | $ | 34,502 |
OEM/Integrator |  |  | 1,246 |  |  |  | 2,924 |  |  |  | 3,271 |  |  |  | 5,466 |
|  | $ | 14,352 |  |  | $ | 21,097 |  |  | $ | 32,414 |  |  | $ | 39,968 |
Net revenues by product type: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Thermal test |  | $ | 4,282 |  |  | $ | 5,885 |  |  | $ | 9,249 |  |  | $ | 11,722 |
Induction heating |  |  | 4,321 |  |  |  | 5,937 |  |  |  | 10,072 |  |  |  | 11,559 |
Semiconductor test |  |  | 3,609 |  |  |  | 6,809 |  |  |  | 8,893 |  |  |  | 12,148 |
Service/other |  |  | 2,140 |  |  |  | 2,466 |  |  |  | 4,200 |  |  |  | 4,539 |
|  | $ | 14,352 |  |  | $ | 21,097 |  |  | $ | 32,414 |  |  | $ | 39,968 |
Net revenues by market: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Semi Market |  | $ | 7,641 |  |  | $ | 13,043 |  |  | $ | 17,752 |  |  | $ | 23,582 |
Industrial |  |  | 4,279 |  |  |  | 5,000 |  |  |  | 10,225 |  |  |  | 10,653 |
Telecommunications |  |  | 691 |  |  |  | 1,343 |  |  |  | 1,284 |  |  |  | 2,622 |
Other Multi Markets |  |  | 1,741 |  |  |  | 1,711 |  |  |  | 3,153 |  |  |  | 3,111 |
|  | $ | 14,352 |  |  | $ | 21,097 |  |  | $ | 32,414 |  |  | $ | 39,968 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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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