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SHORT-TERM BORROWINGS (Tables)
12 Months Ended
Dec. 31, 2018
Debt Disclosure [Abstract]  
Summary of the Use of Short-Term Borrowings
The following table summarizes the use of these short-term borrowings at and for the years ended December 31.
 
(Dollars in thousands)201820172016
Balance at year-end$55,000 $50,000 $52,000 
Weighted average interest rate at year-end2.76 %1.21 %0.76 %
Average balance during the year$71,457 $54,610 $17,841 
Average interest rate during the year2.09 %1.08 %0.61 %
Maximum month-end balance during the year$103,000 $72,000 $52,000 
Summary of the Use of Securities Sold Under Agreements to Repurchase The following table provides additional details for repurchase agreements at and for the years ended December 31.
 
(Dollars in thousands)201820172016
Balance at year-end$9,069 $43,576 $35,864 
Weighted average interest rate at year-end1.22 %0.56 %0.20 %
Average balance during the year$9,715 $43,205 $38,546 
Average interest rate during the year0.82 %0.45 %0.20 %
Maximum month-end balance during the year$14,591 $55,270 $52,693 
Fair value of securities underlying the agreements at year-end17,942 53,485 56,201