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Note 3 - Revenue Recognition
 6 Months Ended
Jun. 30, 2023
Notes to Financial Statements  
Revenue from Contract with Customer [Text Block]

Note 3.  Revenue Recognition

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Disaggregation of Revenue

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Revenue is classified based on the location where the product is manufactured. For additional information on the disaggregated revenues by geographical region, see Note 17, "Geographic Information.”

 

Revenue is also classified by major product category and is presented below (in thousands):

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Three months ended June 30,

 

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% of

      

% of

 

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2023

  

Revenue

  

2022

  

Revenue

 

CATV

 $9,343   22.5% $23,713   45.3%

Data Center

  27,571   66.2%  21,497   41.1%

Telecom

  4,231   10.2%  6,276   12.0%

FTTH

  55   0.1%  27   0.1%

Other

  415   1.0%  786   1.5%

Total Revenue

 $41,615   100.0% $52,299   100.0%

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Six months ended June 30,

 

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% of

      

% of

 

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2023

  

Revenue

  

2022

  

Revenue

 

CATV

 $37,123   39.2% $48,694   46.6%

Data Center

  47,924   50.6%  42,911   41.0%

Telecom

  7,938   8.4%  11,541   11.0%

FTTH

  57   0.1%  124   0.1%

Other

  1,603   1.7%  1,270   1.3%

Total Revenue

 $94,645   100.0% $104,540   100.0%

 

Unearned Revenue

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We record unearned revenues when cash payments are received or due in advance of our performance, including amounts which are refundable. Unearned revenues solely relate to Microsoft's SOW contract prices allocated to the performance obligations that are unsatisfied, or partially unsatisfied, as of the balance sheet date. Unearned revenue balance as of June 30, 2023 and December 31, 2022 was $11.7 million and $3 million, respectively. For the three months ended June 30, 2023 and 2022, revenue recognized from the unearned revenue balance was $0.9 million and $0 million, respectively. For the six months ended June 30, 2023 and 2022, revenue recognized from the unearned revenue balance was $1.2 million and $0 million, respectively.