Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans - Plan Changes in Fair Value of Plan Assets and Funded Status (Details)

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Employee Benefit Plans - Plan Changes in Fair Value of Plan Assets and Funded Status (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Change in projected benefits obligation:      
Projected benefit obligation at beginning of year $ 6,577 $ 4,745  
Service cost 1,835 666 $ 157
Interest cost 210 197 183
Actuarial loss 1,333 1,208  
Benefits paid (238) (239)  
Projected benefit obligation at end of year 9,717 6,577 4,745
Change in Pension Plan assets:      
Fair value of Pension Plan assets at beginning of year 6,615 5,313  
Actual return on Pension Plan assets 161 1,041  
Contributions by employer 1,029 500  
Benefits paid (238) (239)  
Fair value of Pension Plan assets at end of year 7,567 6,615 $ 5,313
Funded (unfunded) status at end of year $ (2,150) $ 38