XML 83 R75.htm IDEA: XBRL DOCUMENT
v3.23.2

Employee Benefit Plans (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 USD ($) shares | Jun. 30, 2023 USD ($) shares
Employee Benefit Plans [Abstract] |  |
Incurred expenses | $ | $ 109,000 | $ 109,000
Shares reserved | 3,000,000 | 3,000,000
Employee benefit plans shares remained |  | 2,704,000

X
- Definition Amount of employee benefit plans shares remained. + References No definition available. + Details
Name: | sieb_EmployeeBenefitPlansSharesRemained
Namespace Prefix: | sieb_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of incurred expenses. + References No definition available. + Details
Name: | sieb_IncurredExpenses
Namespace Prefix: | sieb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Aggregate number of common shares reserved for future issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration