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2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Net Investment Income [Line Items]
Bitcoin's Value	$ 357,981	$ 56,241
Derivative investment asset	505	2,697
Amount
Net Investment Income [Line Items]
Bitcoin's Value	357,981
Derivative investment asset	505	2,697
Investment in debt security	784	726
Total	359,270	3,423
Level 1
Net Investment Income [Line Items]
Bitcoin's Value	357,981
Derivative investment asset	0	0
Investment in debt security	0	0
Total	357,981	0
Level 2
Net Investment Income [Line Items]
Bitcoin's Value	0
Derivative investment asset	0	0
Investment in debt security	0	0
Total	0	0
Level 3
Net Investment Income [Line Items]
Bitcoin's Value	0
Derivative investment asset	505	2,697
Investment in debt security	784	726
Total	$ 1,289	$ 3,423

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