Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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Cash payments to lessor's for use of assets under operating leases.

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The cash inflow associated with the sale of equity securities classified as available-for-sale securities.

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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.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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Number of shares of stock issued during the period pursuant to acquisitions.

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Related Party Disclosures (Details) - USD ($)		1 Months Ended	3 Months Ended
Related Party Disclosures (Details) - USD ($)	Jan. 02, 2020	Jan. 31, 2020	Mar. 31, 2021	Mar. 31, 2020	Jan. 31, 2019
StockCross Shareholders [Member]
Related Party Transaction [Line Items]
Issue of stock under acquisition	3,298,774
Purchase price	$ 29,750,000
StockCross [Member]
Related Party Transaction [Line Items]
Percentage of entity acquired	85.00%				15.00%
MSCO [Member]
Related Party Transaction [Line Items]
Sale of private equity security		$ 288,000
PWC [Member]
Related Party Transaction [Line Items]
Related party revenues			$ 49,000	$ 37,000
Gebbia Sullivan County Land Trust [Member]
Related Party Transaction [Line Items]
Office rent			$ 15,000	$ 15,000