Annual report pursuant to Section 13 and 15(d)

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

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Organization and Summary of Significant Accounting Policies - Componemts of Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
May 25, 2018
Organization and Summary of Significant Accounting Policies      
Raw materials and supplies $ 563 $ 510  
Finished goods 435 752  
Total inventories $ 998 $ 1,262 $ 1,100