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Organization and Summary of Significant Accounting Policies - Property and Equipment Estimated Useful Lives (Details)
12 Months Ended
Dec. 31, 2019
Equipment | Minimum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 3 years
Equipment | Maximum  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 7 years
Furniture and fixtures  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 7 years
Software  
Property, Plant and Equipment [Line Items]  
Property plant and equipment useful life 3 years