Percentage of remaining interest in StockCross purchased.

No definition available.

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- 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.

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- Definition

Face amount or stated value per share of common stock.

+ References

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

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- Definition

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Organization and Basis of Presentation (Details) - USD ($)	Mar. 31, 2022	Mar. 30, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Common stock, par value	$ 1		$ 1
Direct ownership in RISE	44.00%
RISE [Member]
Business Acquisition [Line Items]
Transfers of RISE membership interests		2.00%
Exchange for a net increase in assets		$ 1,000,000
Issuance of RISE membership interests		8.30%
Siebert [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Direct ownership in RISE			76.00%
Siebert [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Direct ownership in RISE	44.00%
Gloria E. Gebbia [Member]
Business Acquisition [Line Items]
Transfers of RISE membership interests	24.00%
Exchanged aggregate of notes payable	$ 2,880,000