v3.25.4
6. INVESTMENTS AND DERIVATIVES - Carrying Value of all Investments (Details) - USD ($)
$ in Thousands
 3 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Schedule of Investments [Line Items]    
(Loss) gain on derivative securities $ 11,795 $ 3,622
Other comprehensive loss (net of tax)   $ 32
Interest Rate Swap Contracts [Member]    
Schedule of Investments [Line Items]    
Balance, beginning [1] (93)  
(Loss) gain on derivative securities [1] 7  
Other comprehensive loss (net of tax) [1] 0  
Purchased and acquired options [1] 0  
Sales and written options [1] 0  
Settlements and expiries [1] 0  
Balance, ending [1] (86)  
Bitmain Derivative [Member]    
Schedule of Investments [Line Items]    
Balance, beginning [1] 233  
(Loss) gain on derivative securities [1] (233)  
Other comprehensive loss (net of tax) [1] 0  
Purchased and acquired options [1] 0  
Sales and written options [1] 0  
Settlements and expiries [1] 0  
Balance, ending [1] 0  
DAM Derivatives [Member]    
Schedule of Investments [Line Items]    
Balance, beginning [1] 0  
(Loss) gain on derivative securities [1] 11,923  
Other comprehensive loss (net of tax) [1] 0  
Purchased and acquired options [1] 872  
Sales and written options [1] (14,059)  
Settlements and expiries [1] 601  
Balance, ending [1] $ (663)  
[1] Balance rows presented represent assets if positive or liabilities if negative.