Fair Value Measurements, Quantitative Information About Level 3 and Investments in Certain Entities Carried at Fair Value (Details) - USD ($)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Information about Significant Unobservable Inputs Used for Recurring Fair Value Measurements for Certain Level 3 Instruments [Abstract]
Financial assets, fair value	$ 33,657,745	$ 34,514,762
Net Asset Value [Member]
Investments in Certain Entities Carried at Fair Value Using Net Asset Value per Share [Abstract]
Equity securities	30,496,625	24,239,952
Unfunded commitments	6,856,072	163,750
Net Asset Value [Member] \| Growth Equity Redeemable [Member]
Investments in Certain Entities Carried at Fair Value Using Net Asset Value per Share [Abstract]
Equity securities	21,713,727	21,270,734
Unfunded commitments	$ 0	$ 0
Redemption frequency	Quarterly
Redemption notice period	45 days	45 days
Net Asset Value [Member] \| Growth Equity Non-Redeemable [Member]
Investments in Certain Entities Carried at Fair Value Using Net Asset Value per Share [Abstract]
Equity securities	$ 8,782,898	$ 2,969,218
Unfunded commitments	6,856,072	163,750
Net Asset Value [Member] \| Common Stock [Member]
Information about Significant Unobservable Inputs Used for Recurring Fair Value Measurements for Certain Level 3 Instruments [Abstract]
Financial assets, fair value	30,496,625	24,239,952
Pricing Model [Member] \| Common Stock [Member]
Information about Significant Unobservable Inputs Used for Recurring Fair Value Measurements for Certain Level 3 Instruments [Abstract]
Financial assets, fair value	$ 3,161,120	$ 10,274,810

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740

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States the frequency (for example, annually, semi-annually, quarterly) with which the entity can redeem its investment, or portion thereof, for each of those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments), by major category.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 6A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258

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Notice period the entity is required to deliver before it can redeem an investment calculated using net asset value per share, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but is not limited to, investments calculated by per unit, per membership interest, other equity or ownership interest and alternative investments.

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The amount of unfunded commitments for which the entity is obligated, to those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 6A
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258

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- Definition

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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