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Significant Accounting Policies (Schedule of Deferred Revenue in Consolidated Balance Sheets) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Significant Accounting Policies [Abstract]    
Beginning of year $ 6,867 $ 2,534
Deferral of revenue 6,948 6,245
Recognition of deferred revenue (4,248) (1,912)
Balance at end of year $ 9,567 $ 6,867