Organization and Summary of Significant Accounting Policies - Concentrations Risk - Revenue (Details) - Customer Concentration Risk [Member] - Revenue from Contract with Customer, Product and Service Benchmark [Member]	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Customer A [Member]
Concentration Risk [Line Items]
Concentration risk percentage (as a percent)		26.00%
Customer B [Member]
Concentration Risk [Line Items]
Concentration risk percentage (as a percent)	12.00%