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Employee and Director Benefit Programs (Details 1) - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
12. Employee and Director Benefit Programs      
Fair value of plan assets $ 0 $ 0  
Funded status (5,011,000) (4,870,000)  
Unrecognized prior service cost/benefit 0 0  
Unrecognized net actuarial loss 0 0  
Net amounts recognized (5,011,000) (4,870,000)  
Intangible assets 0 0  
Unfunded accrued liability (5,011,000) (4,870,000)  
Net amounts recognized $ (5,011,000) $ (4,870,000) $ (4,700)