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12. Employee and Director Benefit Programs (Details 1) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Retirement Benefits [Abstract]      
Benefit obligation $ 4,870 $ 4,700 $ 4,566
Fair value of plan assets 0 0  
Funded status (4,870) (4,700)  
Unrecognized prior service cost/benefit 0 0  
Unrecognized net actuarial loss 0 0  
Net amount recognized (4,870) (4,700)  
Unfunded accrued liability (4,870) (4,700)  
Intangible assets 0 0  
Net amounts recognized $ (4,870) $ (4,700)