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Lease Commitments (Tables)
12 Months Ended
Dec. 31, 2019
Leases [Abstract]  
Lessee Operating Lease Liability Maturity [Table Text Block]
(Dollars in thousands)payments
2020$106
202193
202293
202393
202493
Thereafter416
Total undiscounted operating lease liabilities$894
Imputed interest106
Total operating lease liabilities included in the accompanying balance sheet$788
Weighted-average lease terms in years8.89
Weighted-average discount rate3.40%