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Summary of Significant Accounting Policies - Gain (Loss) on Equity Investments (Details) - USD ($)	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Gain (Loss) on Equity Investments [Abstract]
Net gain (loss) recognized on equity securities	$ 105,000	$ 347,000	$ (181,000)
Less: net gain (loss) recognized on equity securities sold	8,000	74,000	(15,000)
Unrealized gain (loss) recognized on equity securities still held	$ 97,000	$ 273,000	$ (166,000)

X

- Definition

Amount of realized and unrealized gain (loss) on investment in marketable security.

+ References

No definition available.

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- References

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X

- Definition

Amount of realized gain (loss) on investment in marketable security.

+ References

No definition available.

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X

- Definition

Amount of unrealized gain (loss) on investment in marketable security.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

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