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Set forth below are the results of the discontinued operations: (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021 | [1]
Discontinued Operations and Disposal Groups [Abstract] |  |
Product revenue | $ 1,640 | $ 1,337
Cost of sales | 561 | 451
Selling, general, and administrative | 484 | 540
Net income (loss) from discontinued operations | $ 226 | $ (40)
[1] | Reclassified to conform with the current period presentation

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