INCOME TAXES (Summary of Operating Loss Carryforwards) (Details) - Internal Revenue Service (IRS) [Member] - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating Loss Carryforwards	$ 66,212	$ 59,011
Tax Year 2036 [Member]
Operating Loss Carryforwards	13,470	13,470
Tax Year 2037 [Member]
Operating Loss Carryforwards	13,641	3,441
Unlimited life
Operating Loss Carryforwards	$ 39,101	$ 42,100