Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Revenue recognition) (Details)

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Summary of Significant Accounting Policies (Revenue recognition) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Revenues $ 2,371 $ 1,638
Transferred at Point in Time [Member]    
Revenues $ 2,371 1,491
Transferred over Time [Member]    
Revenues   $ 147