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Leases - Supplemental Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Jun. 30, 2022
Leases      
Operating lease costs $ 13 $ 13  
Operating cash flows from operating leases 21 $ 15  
Operating lease ROU asset (included in other assets) 9   $ 21
Accrued liabilities and other - current $ 5   $ 26
Weighted average remaining lease term in years 2 months 1 day 1 year 2 months 1 day  
Weighted average discount rate 5.15% 5.15%  
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] Other assets, net   Other assets, net
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Accrued liabilities and other   Accrued liabilities and other