Interest rate on loan renegotiated percentage.

No definition available.

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

- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of interest payable on debt, including, but not limited to, trade payables.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.15(5))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.15(a))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

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Period Type:	duration

- Details

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Notes Payable - Related Party (Narrative) (Details) - USD ($)		3 Months Ended		6 Months Ended
	Mar. 03, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Short-term Debt [Line Items]
Interest expense		$ 88,000	$ 31,000	$ 164,000	$ 52,000
Interest payable		$ 30,000		$ 30,000		$ 10,000
4% due November 30, 2020 [Member] \| Minimum [Member]
Short-term Debt [Line Items]
Interest rate on loan renegotiated percentage	2.75%
4% due November 30, 2020 [Member] \| Maximum [Member]
Short-term Debt [Line Items]
Interest rate on loan renegotiated percentage	4.00%
4% due September 4, 2020 [Member] \| Minimum [Member]
Short-term Debt [Line Items]
Interest rate on loan renegotiated percentage	1.75%
4% due September 4, 2020 [Member] \| Maximum [Member]
Short-term Debt [Line Items]
Interest rate on loan renegotiated percentage	4.00%