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Equity Compensation Plans - Options (Details)
6 Months Ended
Jun. 30, 2020
USD ($)
shares
Jun. 30, 2019
USD ($)
Mar. 31, 2019
shares
Equity Compensation Plans      
Total compensation cost | $ $ 1,300,000 $ 1,300,000  
Granted (in shares) | shares 0    
2019 Plan      
Equity Compensation Plans      
Number of stock option grant awards outstanding | $ 0    
2014 Plan      
Equity Compensation Plans      
Number of shares authorized | shares     600,000
Restricted Stock and Restricted Stock Units [Member]      
Equity Compensation Plans      
Vesting period 3 years