Organization and Summary of Significant Accounting Policies - Summary of Revenue as Percentage of Total Revenue for Each Significant Customer, or Distributor, and Significant End-Customer (Details) - Sales Revenue, Net - Customer Concentration Risk	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Customer A
Product Information [Line Items]
Concentration risk, percentage	54.00%	75.00%	58.00%	80.00%
Customer B
Product Information [Line Items]
Concentration risk, percentage		11.00%
End-Customer A
Product Information [Line Items]
Concentration risk, percentage	40.00%	63.00%	38.00%	65.00%
End-Customer B
Product Information [Line Items]
Concentration risk, percentage	15.00%		19.00%