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Commitments, Contingencies and Other (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]    
Health claim reinsurance limit per employee $ 50,000  
Expense for self-insurance claims 867,000 $ 935,000
Accrual for self-insurance claims $ 47,000