SHORT-TERM BORROWINGS (Tables)

12 Months Ended

Dec. 31, 2017

Short-term Debt [Abstract]

Schedule of short-term borrowings

A summary of our short-term borrowings as of December 31, 2017, 2016 and 2015 is as follows:

	Year Ended December 31,
	2017			2016			2015
	(Dollars in thousands)
Amount outstanding at December 31	$	32,000		$	135,000		$	69,000
Average amount outstanding during year	15,531			110,928			92,045
Highest month-end balance during year	69,000			226,000			157,000
Weighted average interest rate on balances outstanding at December 31	1.63		%	0.74		%	0.35		%
Weighted average interest rate during year	1.18		%	0.52		%	0.28		%