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Summary of Significant Accounting Policies - Deferred Compensation Plan (Details) - USD ($) | 12 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
Summary of Significant Accounting Policies [Abstract] |  |  |
Carrying value of plan assets | $ 1,881,000 | $ 1,837,000 |
Deferred compensation obligation | 1,881,000 | 1,837,000 |
Expense related to the deferred compensation plan | 36,000 | 6,000 | $ 75,000
Employee contributions made to deferred compensation plan | 46,000 | 82,000 | 287,000
Short-term investments redeemed for the payment of deferred compensation liabilities | $ 151,000 | $ 603,000 | $ 297,000

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- Definition The compensation expense recognized during the period pertaining to the deferred compensation arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 710 -SubTopic 10 -Name Accounting Standards Codification -Section 30 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483043/710-10-30-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-1 + Details
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- Definition The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 710 -SubTopic 10 -Name Accounting Standards Codification -Section 30 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483043/710-10-30-1 + Details
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