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12. Employee and Director Benefit Programs (Details 1) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Retirement Benefits [Abstract]      
Benefit obligation $ 4,700 $ 4,566 $ 4,361
Fair value of plan assets 0 0  
Funded status (4,700) (4,566)  
Unrecognized prior service cost/benefit 0 0  
Unrecognized net actuarial loss 0 0  
Net amount recognized (4,700) (4,566)  
Unfunded accrued liability (4,700) (4,566)  
Intangible assets 0 0  
Net amounts recognized $ (4,700) $ (4,566)