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REVENUE RECOGNITION (Tables) | 3 Months Ended
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Mar. 31, 2021
Revenue from Contract with Customer [Abstract] |
Disaggregated revenue | The following table presents the disaggregation of our revenue for the three months ended March 31, 2021 and 2020 (in thousands).
| Three Months Ended March 31, |  |
| 2021 |  | 2020 |  |  |  |
Fixed fee license revenue | $ | 1,275 |  |  | $ | 1,287 |  |  |  |  |
Per-unit royalty revenue | 5,793 |  |  | 4,895 |  |  |  |  |
Total royalty and license revenue | 7,068 |  |  | 6,182 |  |  |  |  |
Development, services, and other revenue | 91 |  |  | 75 |  |  |  |  |
Total revenue | $ | 7,159 |  |  | $ | 6,257 |  |  |  |  |

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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=121604090&loc=SL49130545-203045 + Details
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