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Note 3 - Revenue Recognition (Tables) | 3 Months Ended
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Mar. 31, 2022
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three months ended March 31, |
​ |  |  |  |  |  | % of |  |  |  |  |  |  | % of |
​ |  | 2022 |  |  | Revenue |  |  | 2021 |  |  | Revenue |
Data Center |  | $ | 21,415 |  |  |  | 41.0 | % |  | $ | 25,939 |  |  |  | 52.2 | %
CATV |  |  | 24,980 |  |  |  | 47.8 | % |  |  | 18,638 |  |  |  | 37.5 | %
Telecom |  |  | 5,265 |  |  |  | 10.1 | % |  |  | 4,479 |  |  |  | 9.0 | %
FTTH |  |  | 98 |  |  |  | 0.2 | % |  |  | 423 |  |  |  | 0.9 | %
Other |  |  | 484 |  |  |  | 0.9 | % |  |  | 222 |  |  |  | 0.4 | %
Total Revenue |  | $ | 52,242 |  |  |  | 100.0 | % |  | $ | 49,701 |  |  |  | 100.0 | %

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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 https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 + Details
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