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Company and Summary of Significant Accounting Policies - Property and Equipment (Details) - USD ($)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Significant Accounting Policies [Line Items]    
Tangible Asset Impairment Charges $ 0 $ 0
Computer Equipment [Member]    
Significant Accounting Policies [Line Items]    
Property, plant and equipment, useful life (in years) 3 years  
Office Equipment [Member] | Minimum [Member]    
Significant Accounting Policies [Line Items]    
Property, plant and equipment, useful life (in years) 3 years  
Office Equipment [Member] | Maximum [Member]    
Significant Accounting Policies [Line Items]    
Property, plant and equipment, useful life (in years) 10 years  
Furniture and Fixtures [Member] | Minimum [Member]    
Significant Accounting Policies [Line Items]    
Property, plant and equipment, useful life (in years) 5 years  
Furniture and Fixtures [Member] | Maximum [Member]    
Significant Accounting Policies [Line Items]    
Property, plant and equipment, useful life (in years) 10 years