XML 78 R69.htm IDEA: XBRL DOCUMENT
v3.22.1

Commitments, Contingencies, and Other (Schedule of Early Termination Fee Upon Occurrence Pursuant) (Details) | Mar. 31, 2022 USD ($)
--- | ---
Prior to August 1, 2022 [Member] |
Other Commitments [Line Items] |
Early Termination Fee | $ 8,000,000
Prior to August 1, 2023 [Member] |
Other Commitments [Line Items] |
Early Termination Fee | 7,250,000
Prior to August 1, 2024 [Member] |
Other Commitments [Line Items] |
Early Termination Fee | 4,500,000
Prior to August 1, 2025 [Member] |
Other Commitments [Line Items] |
Early Termination Fee | $ 3,250,000

X
- Definition The amount of early contract termination fees included in liabilities subject to compromise. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124433192&loc=d3e56015-112765 + Details
Name: | us-gaap_LiabilitiesSubjectToCompromiseEarlyContractTerminationFees
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_OtherCommitmentsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardDateAxis=SIEB_PriorToAugustOneTwentyThousandsTwentyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=SIEB_PriorToAugustOneTwentyThousandsTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=SIEB_PriorToAugustOneTwentyThousandsTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardDateAxis=SIEB_PriorToAugustOneTwentyThousandsTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |