FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2019

FAIR VALUE MEASUREMENTS [Abstract]

Fair Value Measurement on Recurring Basis

	Level 1 Fair Value
	September 30	December 31	September 30
in thousands	2019	2018	2018
Fair Value Recurring
Rabbi Trust
Mutual funds	$       22,667	$       19,164	$       21,504
Total	$       22,667	$       19,164	$       21,504

	Level 2 Fair Value
	September 30	December 31	September 30
in thousands	2019	2018	2018
Fair Value Recurring
Rabbi Trust
Money market mutual fund	$           190	$        1,015	$        1,332
Total	$           190	$        1,015	$        1,332