Subsequent Events	6 Months Ended
Jun. 30, 2021
Subsequent Events [Abstract]
Subsequent Events	20. Subsequent Events The Company has evaluated events that have occurred subsequent to June 30, 2021 and through August 16, 2021, the date of the filing of this Report. On July 28, 2021, the Company’s Board of Directors approved the Siebert Financial Corp. 2021 Equity Incentive Plan which will be submitted for shareholder approval at the upcoming 2021 Annual Meeting of Shareholders. In addition, on August 6, 2021, the Company’s Board of Directors approved a 401(k) matching program for employees of the Company. Other than the events described above, there have been no material subsequent events that occurred during such period that would require disclosure in this Report or would be required to be recognized in the financial statements as of June 30, 2021.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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