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Benefit Plans 401(K) Plan (Details) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Retirement Benefits [Abstract]    
Number of days of continuous employment to be eligible 90 days  
Maximum annual contribution by employee 6.00%  
Employer match 50.00%  
Contributions by employer $ 333,000 $ 312,000