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Stockholders Equity - Stock options compensation expense (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Stock-based compensation expense $ 6 $ 5
Unrecognized compensation costs $ 47  
Wieghted Average Vesting Period 2 years  
Other Selling and Marketing [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Stock-based compensation expense $ 1 1
General and Adminstrative [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Stock-based compensation expense $ 5 $ 4