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Supplemental Financial Information (Details - Inventories) - USD ($)
$ in Thousands
Jun. 30, 2021
Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Finished goods $ 7,738 $ 7,522
Raw materials 7,321 6,259
Inventories, net $ 15,059 $ 13,781