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Significant Accounting Policies, Income Taxes (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Taxes [Abstract]      
Accrued interest and penalties associated with any unrecognized tax benefits $ 0 $ 0 $ 0
Interest expense recognized $ 0 $ 0 $ 0