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Note 3 - Revenue Recognition (Tables) | 3 Months Ended
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Mar. 31, 2024
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three months ended March 31, |
​ |  |  |  |  |  | % of |  |  |  |  |  |  | % of |
​ |  | 2024 |  |  | Revenue |  |  | 2023 |  |  | Revenue |
Data Center |  | $ | 28,986 |  |  |  | 71.2 | % |  | $ | 20,353 |  |  |  | 38.4 | %
CATV |  |  | 8,736 |  |  |  | 21.5 | % |  |  | 27,779 |  |  |  | 52.4 | %
Telecom |  |  | 2,269 |  |  |  | 5.6 | % |  |  | 3,707 |  |  |  | 7.0 | %
FTTH |  |  | — |  |  |  | 0.0 | % |  |  | 2 |  |  |  | 0.0 | %
Other |  |  | 682 |  |  |  | 1.7 | % |  |  | 1,189 |  |  |  | 2.2 | %
Total Revenue |  | $ | 40,673 |  |  |  | 100.0 | % |  | $ | 53,030 |  |  |  | 100.0 | %
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
|  | Three months ended March 31, |
|  | 2024 |  |  | 2023 |
Unearned Revenue, beginning of period |  | $ | 1,803 |  |  | $ | 3,000 |
Additional Unearned Revenue |  |  | — |  |  |  | — |
Revenue recognized |  |  | 114 |  |  |  | 237 |
Unearned Revenue, end of period |  | $ | 1,689 |  |  | $ | 2,763 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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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 -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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- References No definition available. + Details
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