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Discontinued Operation - Narrative (Details) - USD ($) | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Severance and disposal costs | $ 1,600,000 |
Operating expenses | 22,964,000 | $ 19,725,000
Increase in cash from changes in operating assets and liabilities | 3,207,000 | 1,805,000
Disposal Group, Not Discontinued Operations |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Cost of revenue | 64,000 | 34,000
Operating expenses | 7,000 | 3,000
Discontinued Operations, Disposed of by Sale |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Net cash used in operating activities | (1,026,000) | (1,576,000)
Gain (loss) from disposal of discontinued operation | 3,500,000 | 1,800,000
Non-cash items | 236,000 | 24,000
Provision of loss on accounts receivable | 150,000 | 29,000
Increase in cash from changes in operating assets and liabilities | $ 2,200,000 | $ 226,000

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