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Related Party Transactions (Tables)
12 Months Ended
Dec. 31, 2017
Related Party Transactions [Abstract]  
Schedule of Related Party Transactions [Table Text Block]
(Dollars in thousands)Amount
Loans outstanding at December 31, 2016$3,944
New loans/advances336
Repayments(1,212)
Loans outstanding at December 31, 2017$3,068