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GOODWILL AND INTANGIBLE ASSETS - NARRATIVE (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]          
Goodwill $ 5,059,000   $ 5,059,000   $ 5,059,000
Finite-Lived Intangible Assets [Line Items]          
Amortization 100,000 $ 100,000 200,000 $ 500,000  
Impairment charges $ 0 $ 0 $ 0 $ 0  
Marketing Agreement with a related party          
Finite-Lived Intangible Assets [Line Items]          
Weighted-average period remaining until next renewal     3 months 18 days