XML 19 R31.htm IDEA: XBRL DOCUMENT v2.4.0.6

12. Significant Customer (Details Narrative)	9 Months Ended
	Sep. 30, 2012
Notes to Financial Statements
Percentage of commission income earned	10.00%

X

- Details

Name:	SIEB_NotesToFinancialStatementsAbstract
Namespace Prefix:	SIEB_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Custom Element.

+ References

No definition available.

+ Details

Name:	SIEB_PercentageOfCommissionIncomeEarned
Namespace Prefix:	SIEB_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration