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Stock Compensation - Restricted Stock - Narrative (Details) - Restricted Stock - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Nonvested stock compensation expense $ 1.4 $ 1.0 $ 0.9
Unrecognized compensation cost related to restricted stock $ 2.0    
Weighted average period 1 year 9 months 18 days