Commitments and Contingencies - Operating Ground Leases (Details) - USD ($) $ in Thousands |
12 Months Ended | |
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Dec. 31, 2020 |
Dec. 31, 2019 |
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| Commitments and Contingencies Disclosure [Abstract] | ||
| Operating lease right-of-use assets | $ 136 | $ 178 |
| Present value of lease payments | $ 130 | $ 172 |
| Weighted-average remaining lease term (years) | 3 years 9 months 18 days | 4 years 7 months 6 days |
| Weighted-average discount rate | 4.20% | 4.20% |
| Operating lease accrued payments | $ 6 | $ 6 |
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- References No definition available.
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- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 Amount of lessee's right to use underlying asset under operating lease. 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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