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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Intangible Assets (Narrative) (Details)
12 Months Ended
Dec. 31, 2019
Minimum  
Finite-Lived Intangible Assets [Line Items]  
Finite-lived intangible asset, useful life 3 years
Maximum  
Finite-Lived Intangible Assets [Line Items]  
Finite-lived intangible asset, useful life 25 years