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Discontinued Operations (Tables) | 3 Months Ended
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Mar. 31, 2020
Summary of Assets and Liabilities Held for Sale and Operating Results Related to Discontinued Operations | The following table summarizes the results of discontinued operations for the periods presented (in thousands.):
|  | Three Months Ended March 31, |
|  | 2020 |  |  | 2019 |
Product revenue |  | $ | — |  |  | $ | 703 |
Cost of revenue |  |  | — |  |  |  | 659 |
Gross profit |  |  | — |  |  |  | 44 |
Operating expenses: |  |  |  |  |  |  |  |
Research and development |  |  | — |  |  |  | 420 |
Sales and marketing |  |  | — |  |  |  | 314 |
General and administrative |  |  | — |  |  |  | 145 |
Total operating expenses |  |  | — |  |  |  | 879 |
Operating loss |  |  | — |  |  |  | (835 | )
Other income (expense) |  |  |  |  |  |  | 149 |
Loss from discontinued operations |  | $ | — |  |  | $ | (686 | )
Included in the statement of cash flows are the following non-cash adjustments related to the discontinued operations (in thousands):
|  | Three Months Ended March 31, |
|  | 2020 |  |  | 2019 |
Depreciation and amortization |  | $ | — |  |  | $ | 344 |
Provision for excess inventory |  | $ | — |  |  | $ | — |
Loss on asset disposal |  | $ | — |  |  | $ | — |
Discontinued Operations Disposed of By Sale [Member] |
Summary of Business Consideration to Calculation of the Loss on Sale | The following table summarizes the calculation of the loss on sale of the cell therapy business, which was finalized during the fourth quarter of 2019 (in thousands):
Consideration received |  | $ | 7,000 |
Transaction costs |  |  | (1,363 | )
Net cash proceeds |  |  | 5,637 |
Less: |  |  |  |
Carrying value of business and assets sold |  |  | 12,145 |
Net loss on sale of business |  | $ | (6,508 | )

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