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Changes in the Convertible Debentures are as follows: (Details) - USD ($)
$ in Thousands
4 Months Ended 12 Months Ended
Jun. 30, 2023
Jun. 30, 2023
Debt Disclosure [Abstract]    
Balance, June 30, 2023 $ 12,153 $ 10,561
Accretion expense 1,962  
Principal and accrued interest converted (3,554)  
Add: uamortized debt issuance costs   0
Balance, June 30, 2023 $ 13,000 $ 13,000