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Discontinued Operations (Tables) | 12 Months Ended
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Dec. 31, 2018
Discontinued Operations and Disposal Groups [Abstract] |
Schedule of Discontinued Operations | Assets and liabilities held for sale consisted of the following:
|  | September 30, 2018 |  |  | December 31, 2017 |
Assets |  |  |  |  |  |  |  |
Current assets held for sale: |  |  |  |  |  |  |  |
Retail spine inventory, net |  | $ | 1,708 |  |  | $ | 1,602 |
Long-term assets held for sale: |  |  |  |  |  |  |  |
Property and equipment, net |  |  | 959 |  |  |  | 1,162 |
Intangible assets, net |  |  | 2,249 |  |  |  | 2,651 |
Total assets |  | $ | 4,916 |  |  | $ | 5,415 |
Liabilities |  |  |  |  |  |  |  |
Current liabilities held for sale: |  |  |  |  |  |  |  |
Debt – related party |  | $ | 2,500 |  |  | $ | 2,356 |
Operating results related to discontinued operations consisted of the following:
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |
Product revenue |  | $ | 6,222 |  |  | $ | 11,227 |
Costs of revenue |  |  | 1,474 |  |  |  | 6,351 |
Gross profit |  |  | 4,748 |  |  |  | 4,876 |
Operating expenses: |  |  |  |  |  |  |  |
Research and development |  |  | 1,524 |  |  |  | 1,571 |
General and administrative |  |  | 190 |  |  |  | 726 |
Sales and marketing |  |  | 3,358 |  |  |  | 6,147 |
Total operating expenses |  |  | 5,072 |  |  |  | 8,444 |
Loss from discontinued operations |  | $ | (324 | ) |  | $ | (3,568 | )

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