Management's Plans Regarding Liquidity and Capital Resources - Additional information (Detail) - USD ($)		3 Months Ended
Apr. 30, 2020	Mar. 31, 2020
Affiliated Entity [Member]
Loans outstanding to affiliated companies		$ 400,000
Percentage of fund owed by Shareholders		100.00%
Subsequent Event [Member] \| Payroll Protection Program [Member]
Proceeds From Notes Payable	$ 2,949,000
Debt Instrument,Stated Interest Percentage	1.00%
Debt Instrument Maturity Date Description	April 2022
Debt Instrument, Periodic Payment	$ 165,529

Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of principal loans outstanding to affiliates for management investment companies.

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Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

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