XML 49 R41.htm IDEA: XBRL DOCUMENT
v3.23.2

Revenue Recognition (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2023
Revenue Recognition [Abstract] |
Schedule of represents the loss related to principal transactions |
|  | Three Months Ended June 30, |
|  | 2023 |  |  | 2022 |  |  | Increase (Decrease) |
Principal transactions and proprietary trading |  |  |  |  |  |  |  |  |
Realized and unrealized gain on primarily riskless principal transactions |  | $ | 2,186,000 |  |  | $ | 1,698,000 |  |  | $ | 488,000 |
Unrealized gain (loss) on portfolio of U.S. government securities |  |  | 468,000 |  |  |  | (617,000 | ) |  |  | 1,085,000 |
Total Principal transactions and proprietary trading |  | $ | 2,654,000 |  |  | $ | 1,081,000 |  |  | $ | 1,573,000 |
|  | Six Months Ended June 30, |
|  | 2023 |  |  | 2022 |  |  | Increase (Decrease) |
Principal transactions and proprietary trading |  |  |  |  |  |  |  |  |
Realized and unrealized gain on primarily riskless principal transactions |  | $ | 3,985,000 |  |  | $ | 3,616,000 |  |  | $ | 369,000 |
Unrealized gain (loss) on portfolio of U.S. government securities |  |  | 1,469,000 |  |  |  | (2,802,000 | ) |  |  | 4,271,000 |
Total Principal transactions and proprietary trading |  | $ | 5,454,000 |  |  | $ | 814,000 |  |  | $ | 4,640,000 |

X
- Definition Tabular disclosure represents the loss related to principal transactions. + References No definition available. + Details
Name: | sieb_ScheduleOfRepresentsLossRelatedToPrincipalTransactionsTextBlock
Namespace Prefix: | sieb_
Data Type: | dtr:textBlockItemType
Balance Type: | na
Period Type: | duration

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