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Lease Commitments (Tables)
 12 Months Ended
Dec. 31, 2022
Leases [Abstract]  
Lessee Operating Lease Liability Maturity [Table Text Block]
(Dollars in thousands)
Future lease
payments
2023
$
123
2024
123
2025
114
2026
96
2027
96
Thereafter
122
Total undiscounted operating
 
lease liabilities
$
674
Imputed interest
63
Total operating lease liabilities
 
included in the accompanying consolidated balance sheets
$
611
Weighted-average lease terms
 
in years
5.89
Weighted-average discount rate
3.12
%