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General (Details) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2021
Jun. 30, 2021
Accounting Policies [Abstract]    
Accumulated deficit $ (341,453) $ (330,021)
Stockholders' equity 48,907  
Incurred losses 11,432  
Negative cash flow operating activities 8,789  
Cash and cash equivalents, short-term bank deposits and marketable securities $ 79,154