5. RECEIVABLE FROM BITCOIN COLLATERAL (Additional Information) (Details) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
|
Mar. 31, 2026
USD ($)
BITCOIN [Text Block]
|
Mar. 31, 2025
USD ($)
|
Mar. 31, 2026
USD ($)
BITCOIN [Text Block]
|
Mar. 31, 2025
USD ($)
|
Sep. 30, 2025
USD ($)
BITCOIN [Text Block]
|
|
| Receivables [Abstract] | |||||
| Number of bitcoin collateral | BITCOIN [Text Block] | 1,641 | 1,641 | 2,583 | ||
| Fair value of bitcoin | $ 111,940 | $ 111,940 | $ 294,648 | ||
| Gain related to bitcoin collateral | $ (38,838) | $ 0 | $ (142,458) | $ 42,493 | |