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v3.19.3

Accounting Changes and Error Corrections - Operations (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
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Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |  |
Change in fair value of financial instruments | $ (200) |  |  | $ 55 |  |  | $ 267 | $ 55 | $ 318
Net loss | (3,141) | $ (2,785) | $ (2,704) | (1,756) | $ (2,146) | $ (2,793) | (8,630) | (6,695) |
Net Income (Loss) Available to Common Stockholders, Basic | (17,080) |  |  | (4,524) |  |  | (26,871) | (14,309) |
Net loss attributable to common stockholders (diluted) | $ (17,080) |  |  | $ (4,524) |  |  | $ (26,871) | $ (14,309) |
Net loss per share, basic and diluted (USD per share) | $ (11.29) |  |  | $ (71.80) |  |  | $ (48.70) | $ (227.11) |
As Previously Reported |  |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |  |
Change in fair value of financial instruments |  |  |  |  |  |  |  |  | 1,495
Adjustment |  |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |  |
Change in fair value of financial instruments |  |  |  |  |  |  |  |  | $ (1,177)

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