Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Summary of Significant Accounting Policies | |||
| Cash and cash equivalents balance outside of FDIC limit | $ 23,794 | ||
| Anti-dilutive securities excluded from computation of net loss per share | 2,621,440 | 2,253,399 | 1,177,456 |
| Advertising costs | $ 29 | $ 204 | $ 40 |
| Undiscounted future minimum operating lease commitment not recognized | $ 43,579 | ||
| X | ||||||||||
- Definition Undiscounted future minimum operating lease commitment not recognized No definition available.
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- References No definition available.
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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of cash as of the balance sheet date that is not insured by the Federal Deposit Insurance Corporation. No definition available.
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