Fair Value Measurements, Reconciliation for Level 3 Assets Measured at Fair Value on a Recurring Basis (Details)	3 Months Ended
Mar. 31, 2021 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 33,657,745
Total unrealized gain or (losses) [Abstract]
Realized gains (losses)	352,869
Unrealized gains (losses)	6,856,790
Purchases	3,786,151
Sales	(352,869)
Ending Balance	44,300,686
Beginning Balance	33,657,745
Purchases
Ending Balance	44,300,686
Equity Securities [Member]
Total unrealized gain or (losses) [Abstract]
Beginning Balance	3,161,120
Purchases
Realized gains (losses)	352,869
Unrealized gains (losses)	(70,881)
Purchases	519,732
Sales	(352,869)
Ending Balance	3,609,971
Equity Securities at Net Asset Value [Member]
Total unrealized gain or (losses) [Abstract]
Beginning Balance	30,496,625
Purchases
Realized gains (losses)	0
Unrealized gains (losses)	6,927,671
Purchases	3,266,419
Sales	0
Ending Balance	$ 40,690,715

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount of gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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- Definition

Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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- Definition

Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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- Definition

Amount of sale of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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Amount of gain (loss) recognized in income from asset including assets measured at net asset value measured at fair value on recurring basis using unobservable input (level 3).

+ References

No definition available.

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Amount of gain (loss) recognized in other comprehensive income (OCI) from asset including assets measured at net asset value measured at fair value on recurring basis using unobservable input (level 3).

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Fair value of financial instrument classified as an asset including assets measured at net asset value measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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