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Long-Term Debt (Tables)
12 Months Ended
Dec. 31, 2016
Long-term debt:  
Schedule of Long-term Debt Instruments [Table Text Block]
20162015
WeightedWeighted
(Dollars in thousands)AmountAvg. RateAmountAvg. Rate
Subordinated debentures, due 2033$3,2173.88%$7,2173.63%
Total long-term debt$3,2173.88%$7,2173.63%
Schedule of Maturities of Long-term Debt [Table Text Block]
(Dollars in thousands)20172018201920202021ThereafterTotal
Subordinated debentures3,2173,217
Total long-term debt$3,2173,217