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Stockholders Equity (Details - Share based compensation) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Total share-based compensation $ 3,584 $ 3,639
Cost of Sales [Member]    
Total share-based compensation 281 227
Selling, General and Administrative Expenses [Member]    
Total share-based compensation 2,719 2,959
Research and Development Expense [Member]    
Total share-based compensation $ 584 $ 453