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Summary of Significant Accounting Policies - Schedule of Activity for Investments in Equity Securities Measured at Fair Value (Detail) - USD ($) | 3 Months Ended | 9 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021
Schedule of Investments in Equity Securities Measured at Fair Value [Line Items) |  |  |  |
Purchases at cost |  |  | $ 1,061,000 | $ 0
Sales |  |  | (384,000) | 0
Loss on investment in equity securities | $ (48,000) | $ 0 | (123,000) | $ 0
Level 1 [Member] |  |  |  |
Schedule of Investments in Equity Securities Measured at Fair Value [Line Items) |  |  |  |
Balance at March 31, 2022 |  |  | 0 |
Purchases at cost |  |  | 1,061,000 |
Sales |  |  | (384,000) |
Loss on investment in equity securities |  |  | (123,000) |
Balance at December 31, 2022 | $ 554,000 |  | $ 554,000 |

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- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as noncurrent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 1A -URI https://asc.fasb.org/extlink&oid=123594786&loc=SL75136599-209740 + Details
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- Definition 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). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126980263&loc=SL75117546-209714 + Details
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- Definition Amount of cash outflow to acquire investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as investing activity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 321 -SubTopic 10 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=123583714&loc=SL75117360-209713 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 19 -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3444-108585 + Details
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