COMMITMENTS AND CONTINGENCIES	12 Months Ended
COMMITMENTS AND CONTINGENCIES	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES (a) Legal Matters The Company is subject to certain legal and other claims that arise in the ordinary course of its business. In particular, the Company and its subsidiaries are named in and subject to various proceedings and claims arising primarily from the Company’s securities business activities, including lawsuits, arbitration claims, class actions, and regulatory matters. Some of these claims seek substantial compensatory, punitive, or indeterminate damages. The Company and its subsidiaries are also involved in other reviews, investigations, and proceedings by governmental and self-regulatory organizations regarding the Company’s business, which may result in adverse judgments, settlements, fines, penalties, injunctions, and other relief. In addition to such legal and other claims, reviews, investigations, and proceedings, the Company and its subsidiaries are subject to the risk of unasserted claims, including, among others, as it relates to matters related to Mr. Kahn and our investment in Freedom VCM. For example, in light of Mr. Kahn’s alleged involvement with the alleged misconduct concerning Prophecy Asset Management LP, the Company can provide no assurances that it will not be subject to claims asserting an interest in the Freedom VCM equity interests owned by Mr. Kahn, including those that collateralize the Amended and Restated Note. If a claim were successful, it would diminish the value of the collateral which could impact the carrying value of the loan. If such claims are made, however, the Company believes it has valid defenses from any such claim and any such claim would be without merit. Notwithstanding the uncertainties described in this paragraph, the Company does not believe that the results of these asserted or unasserted claims are likely to have a material effect on its financial statements. On January 24, 2024, a putative securities class action complaint was filed by Mike Coan in U.S. Federal District Court, Central District of California, against the Company, Bryant Riley, Tom Kelleher and Phillip Ahn (“Defendants”). The purported class includes persons and entities that purchased shares of the Company’s common stock between May 10, 2023 and November 9, 2023. The complaint alleges that (a) the Company failed to disclose to investors that (i) Brian Kahn, had been implicated in a conspiracy to defraud third party investors, and (ii) the Company financed Brian Kahn and others in connection with a going private transaction involving FRG, and (b) as a result of the foregoing, the Company engaged in securities fraud in violation of Sections 10(b) and 20(a) of the Securities Exchange Act of 1934. A second putative class action lawsuit was filed on March 15, 2024 by the KL Kamholz Joint Revocable Trust (“Kamholz”). This complaint asserts similar allegations as the Coan complaint and covers an alleged class period between February 28, 2022 and November 9, 2023. The Kamholz complaint further alleges that Defendants knew or should have known that Brian Kahn was engaged in illegal activities, including a conspiracy to commit fraud, and nonetheless proceeded with the FRG going-private transaction. The Company cannot estimate the amount of potential liability, if any, that could arise from these matters and believes these claims are meritless and intends to defend these actions. On September 21, 2023, the Company received a demand alleging that certain payments in the aggregate amount of approximately $32,166 made by Sorrento Therapeutics, Inc. (“Sorrento”), a chapter 11 debtor in U.S. Bankruptcy Court, Southern District of Texas, to B. Riley Commercial Capital, LLC (“BRCC”), pursuant to that certain Bridge Loan Agreement dated September 30, 2022 between Sorrento and BRCC, are avoidable as preferential transfers. The Company believes the Sorrento Unsecured Creditors Committee’s preference claims lack merit, and the Company intends to assert its statutory defenses to defeat the claim. (b) Babcock & Wilcox Commitments and Guarantee On January 18, 2024, the Company, entered into a guaranty (the “Axos Guaranty”) in favor of (i) Axos Bank, in its capacity as administrative agent (the “Administrative Agent”) for the secured parties under that certain credit agreement, dated as of January 18, 2024, among Babcock & Wilcox Enterprises, Inc. (“B&W”), the guarantors party thereto, the lenders party thereto and the Administrative Agent (the “B&W Axos Credit Agreement”), and (ii) the secured parties. Subject to the terms and conditions of the Axos Guaranty, the Company has guaranteed certain obligations of B&W (subject to certain limitations) under the B&W Axos Credit Agreement, including the obligation to repay outstanding loans and letters of credit and to pay earned interest, fees costs and expenses of enforcing the Axos Guaranty, provided however, that the Company’s obligations with respect to the principal amount of credit extensions and unreimbursed letter of credit obligations under the B&W Axos Credit Agreement shall not at any time exceed $150,000 in the aggregate, which is the maximum potential amount of future payments under the guaranty. In consideration for the agreements and commitments under the Axos Guaranty and pursuant to a separate fee and reimbursement agreement, B&W has agreed to pay the Company a fee equal to 2.00% of the aggregate revolving commitments (as defined in the B&W Axos Credit Agreement) under the B&W Axos Credit Agreement, payable quarterly and, at B&W’s election, in cash in full or 50% in cash and 50% in the form of penny warrants. On June 30, 2021, the Company agreed to guaranty (the “Cash Collateral Provider Guaranty”) up to $110,000 of obligations that B&W may owe to providers of cash collateral pledged in connection with a debt financing for B&W. The Cash Collateral Provider Guaranty is enforceable in certain circumstances, including, among others, certain events of default and the acceleration of B&W’s obligations under a reimbursement agreement with respect to such cash collateral. B&W will pay the Company $935 per annum in connection with the Cash Collateral Provider Guaranty. B&W has agreed to reimburse the Company to the extent the Cash Collateral Provider Guaranty is called upon. As of December 31, 2022, the Cash Collateral Provider Guaranty was in respect of up to $100,000 of B&W obligations after B&W made paydowns of $10,000 during the year ended December 31, 2022. As of December 31, 2023, the Cash Collateral Provider Guaranty was in respect of up to $90,000 of B&W obligations after B&W made paydowns of $10,000 during the year ended December 31, 2023. On December 22, 2021, the Company entered into a general agreement of indemnity in favor of one of B&W’s sureties. Pursuant to this indemnity agreement, the Company agreed to indemnify the surety in connection with a default by B&W under a €30,000 payment and performance bond issued by the surety in connection with a construction project undertaken by B&W. In consideration for providing the indemnity, B&W paid the Company fees in the amount of $1,694 on January 20, 2022. On August 10, 2020, the Company entered into a project specific indemnity rider to a general agreement of indemnity made by B&W in favor of one of its sureties. Pursuant to the indemnity rider, the Company agreed to indemnify the surety in connection with a default by B&W under the underlying indemnity agreement relating to a $29,970 payment and performance bond issued by the surety in connection with a construction project undertaken by B&W. In consideration for providing the indemnity rider, B&W paid the Company fees in the amount of $600 on August 26, 2020. During the year ended December 31, 2023, the indemnity rider was reduced to $5,994. (c) FRG Commitments On May 10, 2023, the Company entered into certain agreements pursuant to which the Company had, among other things, agreed to provide certain equity funding and other support in connection with the acquisition (the “Acquisition”) by Freedom VCM, Inc., a Delaware corporation (the “Parent”), of FRG. The Company entered into an Equity Commitment Letter with Freedom VCM (“TopCo”), the parent company of the Parent, and the Parent, pursuant to which the Company agreed to provide to TopCo, at or prior to the closing of the Acquisition, an amount equal to up to $560,000 in equity financing. The Company and FRG also entered into a Limited Guarantee in favor of FRG, pursuant to which the Company agreed to guarantee to FRG the due and punctual payment, performance and discharge when required by Parent or its subsidiary to FRG of certain liabilities and obligations of the Parent or such subsidiary. On August 21, 2023, in connection with the completion of the Acquisition and the Company's portion of the equity financing, the Company's obligations pursuant to the Equity Commitment Letter and Limited Guarantee were satisfied and the Company was paid the $16,500 fee pursuant to the Equity Commitment Letter and Limited Guarantee. (d) Other Commitments In the normal course of business, the Company enters into commitments to its clients in connection with capital raising transactions, such as firm commitment underwritings, equity lines of credit, or other commitments to provide financing on specified terms and conditions. These commitments may require the Company to purchase securities at a specified price or otherwise provide debt or equity financing on specified terms. Securities underwriting exposes the Company to market and credit risk, primarily in the event that, for any reason, securities purchased by the Company cannot be distributed at the anticipated price and to balance sheet risk in the event that debt or equity financing commitments cannot be syndicated. With respect to one of the Company’s investments, a wholly owned subsidiary of the Company entered into an agreement whereby the subsidiary may be required, commencing in August 2027 and expiring in August 2028, to purchase additional equity capital at fair value which was originally valued at $15,000.