Shareholders Equity - Dividends (Details) - $ / shares  | 
12 Months Ended | |
|---|---|---|
Dec. 31, 2020  | 
Dec. 31, 2019  | 
|
| Equity [Abstract] | ||
| Payment of dividends (in dollars per share) | $ 0 | $ 0 | 
| X | ||||||||||
- Definition Aggregate dividends paid during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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| X | ||||||||||
- References No definition available. 
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