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Investments and Fair Value Measurement - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2024
Investments [Line Items]
Investments in debt securities	$ 1,000,000		$ 1,000,000
Cash and cash equivalents	3,174,000	$ 7,617,000	3,174,000	$ 7,617,000	$ 2,901,000
(Loss) gain on investment in equity securities	$ 0	$ 0	0	$ 12,000
Maximum [Member]
Investments [Line Items]
Interest income on investments in debt securities			$ 100,000

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Interest income on investments in debt securities.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Sum of the carrying amounts as of the balance sheet date of all investments.

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