Quarterly report pursuant to Section 13 or 15(d)

Organization and Summary of Significant Accounting Policies - Components of Inventories (Details)

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Organization and Summary of Significant Accounting Policies - Components of Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Organization and Summary of Significant Accounting Policies    
Raw materials and supplies $ 442 $ 563
Finished goods 631 435
Total inventories $ 1,073 $ 998