FAIR VALUE MEASUREMENTS (Tables)

9 Months Ended

Sep. 30, 2020

FAIR VALUE MEASUREMENTS [Abstract]

Fair Value Measurement on Recurring Basis

	Level 1 Fair Value
	September 30	December 31	September 30
in thousands	2020	2019	2019
Fair Value Recurring
Rabbi Trust
Mutual funds	$       24,447	$       22,883	$       22,667
Total	$       24,447	$       22,883	$       22,667

	Level 2 Fair Value
	September 30	December 31	September 30
in thousands	2020	2019	2019
Fair Value Recurring
Rabbi Trust
Money market mutual fund	$        1,581	$        1,340	$           190
Total	$        1,581	$        1,340	$           190