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Restricted Stock Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Shares outstanding 118,855   120,089
Options outstanding weighted average exercise price $ 35.42   $ 35.33
Options outstanding weighted average remaining term 5 years   5 years 3 months 18 days
Options outstanding weighted average grant date fair value $ 1,516   $ 1,531
Restricted Stock [Member]      
Shares outstanding 48,298   20,520
Options outstanding weighted average exercise price $ 45.87   $ 46.30
Options outstanding weighted average remaining term 3 years 9 months 18 days   3 years 4 months 25 days
Options outstanding weighted average grant date fair value $ 2,215   $ 950
Time-based awards granted      
Shares awarded 8,896    
Options outstanding weighted average exercise price - Granted 45.55    
Options granted weighted average grant date fair value $ 405    
Performance Shares [Member]      
Shares awarded 18,882 20,520  
Options outstanding weighted average exercise price - Granted 45.55    
Options granted weighted average grant date fair value $ 860