Commitments and Contingencies (Cash flows) (Details) - USD ($) $ in Thousands  | 
9 Months Ended | |
|---|---|---|
Sep. 30, 2020  | 
Sep. 30, 2019  | 
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| Commitments and Contingencies | ||
| Operating cash flows from operating leases | $ 52 | |
| Operating cash flows from operating leases | $ (41) | |
| Weighted-average remaining lease term - operating leases | 3 years 4 months 24 days | 4 years 6 months | 
| Weighted-average discount rate - operating leases | 8.98% | 8.96% | 
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- Definition Proceeds From Payments For Operating Leases No definition available. 
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- References No definition available. 
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- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Weighted average discount rate for operating lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/exampleRef 
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