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Revenue from Contracts with Customers (Tables) | 3 Months Ended
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Mar. 31, 2022
Revenue from Contract with Customer [Abstract] |
Schedule of disaggregation of revenue | Revenue disaggregated by revenue source is as follows (in thousands):
|  |  | Three months ended March 31,
|  |  |  |  | 2022 |  | 2021
Revenue: |  |  |  |  |  |  |
Products (1) |  |  |  |  | $ | 12,199 |  |  | $ | 11,082 |
Services |  |  |  |  | 680 |  |  | 688 |
|  |  |  |  | $ | 12,879 |  |  | $ | 11,770 |
(1) Product revenues for 2022 include sales to a related party as described in Note 15, “Related Party Transactions.”

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- Definition Tabular disclosure of entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 + Details
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