2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair Value of Financial Instruments (Details) - USD ($)	Mar. 31, 2022	Sep. 30, 2021
Net Investment Income [Line Items]
Derivative Asset	$ 3,794,359	$ 4,905,656
Equity Securities, FV-NI, Current	250,000	260,772
Amount [Member]
Net Investment Income [Line Items]
Derivative Asset	3,794,359	4,905,656
Equity Securities, FV-NI, Current		10,772
Debt Securities	541,200	494,608
Business Combination, Contingent Consideration, Asset		820,802
Financial Instruments, Owned, Principal Investments, at Fair Value	4,335,559	6,231,838
Level 1
Net Investment Income [Line Items]
Derivative Asset	0	0
Equity Securities, FV-NI, Current		10,772
Debt Securities	0	0
Business Combination, Contingent Consideration, Asset		0
Financial Instruments, Owned, Principal Investments, at Fair Value	0	10,772
Level 2
Net Investment Income [Line Items]
Derivative Asset	0	0
Equity Securities, FV-NI, Current		0
Debt Securities	0	0
Business Combination, Contingent Consideration, Asset		0
Financial Instruments, Owned, Principal Investments, at Fair Value	0	0
Level 3
Net Investment Income [Line Items]
Derivative Asset	3,794,359	4,905,656
Equity Securities, FV-NI, Current		0
Debt Securities	541,200	494,608
Business Combination, Contingent Consideration, Asset		820,802
Financial Instruments, Owned, Principal Investments, at Fair Value	$ 4,335,559	$ 6,221,066

Amount of asset recognized arising from contingent consideration in a business combination.

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Amount, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), investment in debt security measured at amortized cost (held-to-maturity), and investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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The fair value as of the balance sheet date of firm holdings in private equity, mezzanine, venture capital, merchant banking, real estate and special situations investments. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings.

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