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Revenue from Contracts with Customers (Tables) | 6 Months Ended
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Jun. 30, 2021
Revenue from Contract with Customer [Abstract] |
Schedule of disaggregation of revenue | Revenue disaggregated by revenue source is as follows (in thousands):
| Three months ended June 30, |  | Six months ended June 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Revenue: |  |  |  |  |  |  |
Products | $ | 8,444 |  |  | $ | 8,176 |  |  | $ | 19,524 |  |  | $ | 26,976 |
Services | 721 |  |  | 704 |  |  | 1,411 |  |  | 1,320 |
| $ | 9,165 |  |  | $ | 8,880 |  |  | $ | 20,935 |  |  | $ | 28,296 |

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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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