PENSION LIABILITY - Components of Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
PENSION LIABILITY
Service Cost	$ 264		$ 522
Interest Cost	499	$ 195	979	$ 394
Expected return on plan assets	(142)	(166)	(290)	(336)
Amortization of actuarial gain and losses	112	115	228	233
Net periodic pension cost	$ 733	$ 144	$ 1,439	$ 291