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4. BITCOIN (Details Narrative) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Common Domain Members [Abstract]        
Percentage of Bitcoin in Cold Storage 99.00%   99.00%  
Percentage of Bitcoin in Hot Wallets 1.00%   1.00%  
Cumulative Losses From Dispositions Of Bitcoin $ 0 $ 0 $ 0 $ 0
Recognized cumulative realized gains 218,148 443 227,061 12,862
Receivable from bitcoin collateral 271,491   271,491  
Gain on bitcoin collateral $ 31,354 $ 0 73,847 0
Amount of allowances for credit losses     $ 0 $ 0