Organization and Summary of Significant Accounting Policies - Additional Information 2 (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2019
Schedule Of Organization And Presentation Of Financial Statements [Line Items]
Operating lease liabilities	$ 156
Operating lease right of use assets	188
Net assets obtained in exchange for new operating lease liabilities	2,862
Accounting Standards Update 2016-02
Schedule Of Organization And Presentation Of Financial Statements [Line Items]
Operating lease liabilities			$ 141
Operating lease right of use assets			$ 141
Net assets obtained in exchange for new operating lease liabilities	2,862
Selling Expenses
Schedule Of Organization And Presentation Of Financial Statements [Line Items]
Freight-out costs	$ 2,523	$ 2,791