v3.25.3

Portfolio Securities (Details Narrative) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Equus Energy, LLC [Member]
Investment amount		$ 350
Increase in fair value of investment	$ 2,500	5,000
Net change in unrealized appreciation		4,650
Increase in cost basis		350
PalletOne [Member]
Capital gain		$ 500

X

- References

No definition available.

+ Details

Name:	equus_CapitalGainLoss
Namespace Prefix:	equus_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	equus_ChangeInUnrealizedAppreciation
Namespace Prefix:	equus_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	equus_IncreaseDecreaseInCostBasis
Namespace Prefix:	equus_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	equus_InvestmentAmount
Namespace Prefix:	equus_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount of increase (decrease) in the investments in and advances to affiliates.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 6
-Subparagraph (SX 210.12-14(Column A)(Footnote 1)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477271/946-320-S99-6

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: