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Commitment and Contigent Liabilities (Tables)
 12 Months Ended
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]  
Schedule Of Commitments To Extend Credit [Table Text Block]
December 31
(Dollars in thousands)
2020
2019
Commitments to extend credit
$
74,970
$
60,564
Standby letters of credit
1,237
1,921