Commitments and Contingencies	9 Months Ended
Sep. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Minimum Volume Commitment In June 2022, the Company entered into a long-term supply agreement containing a minimum volume commitment with a third party that provides services to process certain raw materials. Any purchase order issued under this supply agreement will be non-cancellable. If the Company fails to order the guaranteed minimum volume defined in the contract at the end of the term, the Company will be required to pay the counterparty an amount equal to the shortfall, if any, multiplied by a fee. The Company is currently negotiating a new long-term supply agreement with the counterparty. As part of the ongoing negotiations, the Company has agreed to pay the counterparty $1,250 as a shortfall penalty and transfer equipment with a net book value of approximately $600. As a result, the Company will be released of any minimum volume commitments as part of the original agreement. A liability of $1,850 has been recorded and is included in Accrued expenses on the Unaudited Condensed Consolidated Balance Sheets and was recognized in Cost of goods sold on the Unaudited Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income. Class Action Complaints On March 8, 2023, a class action lawsuit was filed in the Court of Chancery of the State of Delaware by plaintiff Richard Delman against certain defendants including the Company’s former directors (the “Delman Defendants”). Neither the Company nor Eos Energy Storage LLC were named as a defendant but each was identified in the Complaint as a relevant non-party and the Company has indemnification obligations relating to the lawsuit. On February 1, 2024, the parties agreed to a binding Settlement Term Sheet (the “Settlement”) whereby plaintiff agreed to resolve the lawsuit in exchange for a settlement payment of $8,500, to be fully funded by the Company’s Directors and Officers (“D&O”) liability insurance policies subject to a retention by the Company of approximately $1,000 consisting of the Company’s payment of legal fees related to this matter. On June 1, 2024, the parties submitted to the Court of Chancery a definitive Stipulation and Agreement of Settlement, Compromise, and Release, and related documents. On October 17, 2024, the Court of Chancery approved the proposed Settlement and the Company coordinating the settlement payment with the Company’s D&O insurers. On August 1, 2023, a class action lawsuit was filed in the United States District Court of New Jersey by plaintiff William Houck against the Company, the Company’s Chief Executive Officer, its former Chief Financial Officer and its current Chief Financial Officer (with the Company, the “Houck Defendants”). The Complaint alleges that the defendants violated federal securities laws by making knowingly false or misleading statements about the Company’s contractual relationship with a customer and about the size of the Company’s order backlog and commercial pipeline. Defendants deny the allegations and, on February 13, 2024, moved to dismiss the Complaint. On March 5, 2024, plaintiff filed an amended complaint that dropped the Company’s former Chief Financial Officer as a defendant. On April 4, 2024, defendants filed a renewed motion to dismiss the lawsuit. The Company intends to continue to vigorously defend against this action.

In June 2022, the Company entered into a long-term supply agreement containing a minimum volume commitment with a third party that provides services to process certain raw materials. Any purchase order issued under this supply agreement will be non-cancellable. If the Company fails to order the guaranteed minimum volume defined in the contract at the end of the term, the Company will be required to pay the counterparty an amount equal to the shortfall, if any, multiplied by a fee. The Company is currently negotiating a new long-term supply agreement with the counterparty. As part of the ongoing negotiations, the Company has agreed to pay the counterparty $1,250 as a shortfall penalty and transfer equipment with a net book value of approximately $600. As a result, the Company will be released of any minimum volume commitments as part of the original agreement. A liability of $1,850 has been recorded and is included in Accrued expenses on the Unaudited Condensed Consolidated Balance Sheets and was recognized in Cost of goods sold on the Unaudited Condensed Consolidated Statements of Operations and Comprehensive (Loss) Income.

On March 8, 2023, a class action lawsuit was filed in the Court of Chancery of the State of Delaware by plaintiff Richard Delman against certain defendants including the Company’s former directors (the “Delman Defendants”). Neither the Company nor Eos Energy Storage LLC were named as a defendant but each was identified in the Complaint as a relevant non-party and the Company has indemnification obligations relating to the lawsuit. On February 1, 2024, the parties agreed to a binding Settlement Term Sheet (the “Settlement”) whereby plaintiff agreed to resolve the lawsuit in exchange for a settlement payment of $8,500, to be fully funded by the Company’s Directors and Officers (“D&O”) liability insurance policies subject to a retention by the Company of approximately $1,000 consisting of the Company’s payment of legal fees related to this matter. On June 1, 2024, the parties submitted to the Court of Chancery a definitive Stipulation and Agreement of Settlement, Compromise, and Release, and related documents. On October 17, 2024, the Court of Chancery approved the proposed Settlement and the Company coordinating the settlement payment with the Company’s D&O insurers.

On August 1, 2023, a class action lawsuit was filed in the United States District Court of New Jersey by plaintiff William Houck against the Company, the Company’s Chief Executive Officer, its former Chief Financial Officer and its current Chief Financial Officer (with the Company, the “Houck Defendants”). The Complaint alleges that the defendants violated federal securities laws by making knowingly false or misleading statements about the Company’s contractual relationship with a customer and about the size of the Company’s order backlog and commercial pipeline. Defendants deny the allegations and, on February 13, 2024, moved to dismiss the Complaint. On March 5, 2024, plaintiff filed an amended complaint that dropped the Company’s former Chief Financial Officer as a defendant. On April 4, 2024, defendants filed a renewed motion to dismiss the lawsuit. The Company intends to continue to vigorously defend against this action.