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Related Party Transactions - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Balance with Fund Manager	$ 26,811,000	$ 15,595,000
Fund management fee percent	0.52%
MtronPTI Spin-off	$ (13,790,000)
MtonPTI [Member]
Related Party Transaction [Line Items]
MtronPTI Spin-off	838,000
Reduction of Spinoff costs	$ 219,000
Minimum [Member]
Related Party Transaction [Line Items]
Percentage of sponsorship owned	10.00%	10.00%
Cash and Cash Equivalents [Member]
Related Party Transaction [Line Items]
Balance with Fund Manager	$ 10,295,000	$ 5,823,000
Marketable Securities [Member]
Related Party Transaction [Line Items]
Balance with Fund Manager	$ 16,516,000	$ 9,772,000

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- Definition

Excess separation costs.

+ References

No definition available.

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- Definition

Fund management fee percent.

+ References

No definition available.

+ Details

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- Definition

The carrying amount of assets an investment adviser manages on behalf of investors.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The change in equity as a result of a spin-off transaction (a regular or reverse spin-off) which is based on the recorded amounts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 60
-Section 25
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=6406278&loc=d3e26268-112671

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- Definition

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

+ References

No definition available.

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