Long-Term Debt (Details) - USD ($) $ in Thousands |
3 Months Ended | |
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Mar. 31, 2021 |
Mar. 31, 2020 |
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Debt Disclosure [Abstract] | ||
Interest expense | $ 2 | $ 7 |
X | ||||||||||
- References No definition available.
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X | ||||||||||
- Definition The net amount of nonoperating interest income (expense). No definition available.
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