Software, Net (Details) - Schedule of software - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Software, Net (Details) - Schedule of software [Line Items]
Total Software	$ 4,105,000	$ 3,275,000
Total Software, net	991,000	752,000
Robo-advisor [Member]
Software, Net (Details) - Schedule of software [Line Items]
Total Software	763,000	763,000
Less accumulated amortization	(763,000)	(763,000)
Other software [Member]
Software, Net (Details) - Schedule of software [Line Items]
Total Software	3,342,000	2,512,000
Less accumulated amortization	$ (2,351,000)	$ (1,760,000)

No definition available.

Name:	sieb_SoftwareNetDetailsScheduleofsoftwareLineItems
Namespace Prefix:	sieb_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

For each balance sheet presented, the amount of accumulated amortization for capitalized computer software costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

+ Details

Name:	us-gaap_CapitalizedComputerSoftwareAccumulatedAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software.

+ References

+ Details

Name:	us-gaap_CapitalizedComputerSoftwareGross
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

+ Details

Name:	us-gaap_CapitalizedComputerSoftwareNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=sieb_RoboadvisorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=sieb_OtherSoftwareMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: