XML 51 R38.htm IDEA: XBRL DOCUMENT
v3.7.0.1

BUSINESS ACQUISITION (Details Narrative) | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($)
Income attributable to capital markets obligation | $ 493,000
Pro Forma [Member] | SBS |
Income attributable to capital markets obligation | $ 493,000

X
- Definition Custom Element. + References No definition available. + Details
Name: | SIEB_IncomeAttributableToCapitalMarketsObligation
Namespace Prefix: | SIEB_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementScenarioAxis=us-gaap_ProFormaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=SIEB_SbsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |