Commitment and Contingencies	9 Months Ended
Commitment and Contingencies	Sep. 30, 2025
Commitments and Contingencies Disclosure [Abstract]
Commitment and Contingencies	Commitment and Contingencies Legal Proceedings We record an estimate of a loss when the loss is considered probable and estimable. Where a liability is probable and there is a range of estimated loss and no amount in the range is more likely than any other number in the range, we record the minimum estimated liability related to the claim in accordance with ASC 450, Contingencies. As additional information becomes available, we assess the potential liability related to our pending litigation and revises our estimates. Revisions in our estimates of potential liability could materially impact our results of operations. On October 31, 2019, we received three civil complaints filed in the U.S. District Court for the Northern District of Ohio on behalf of several Indian tribes. The Northern District of Ohio is the Court that the Judicial Panel on Multi-District Litigation (“JPML”) has assigned more than one thousand civil cases which have been designated as a Multi-District Litigation (“MDL”) and captioned In Re: National Prescription Opiate Litigation. The allegations in these complaints focus on the activities of defendants other than the Company and no individualized factual allegations have been advanced against us in any of the three complaints. We reject all claims raised in the complaints and intend to vigorously defend these matters. On August 22, 2024, CyDex Pharmaceuticals, Inc. filed a Verified Complaint in the Delaware Court of Chancery against Bexson Biomedical, Inc. (“Bexson”), asserting claims for declaratory relief and breach of contract arising out of a Captisol In Vivo Agreement (the “In Vivo Agreement”) between the parties, pursuant to which CyDex provided Bexson with research-grade Captisol and related confidential and proprietary information for a potential new formulation of ketamine being developed by Bexson. CyDex alleges that Bexson breached its obligations under the In Vivo Agreement, including by misusing confidential information and materials provided by CyDex and by using CyDex’s confidential information and materials to file patent applications that purport to cover formulations that are “not ketamine”. CyDex also asserts that Bexson failed to return and destroy CyDex’s confidential information and materials as required by the In Vivo Agreement. CyDex seeks relief including specific performance of certain co-ownership provisions of the In Vivo Agreement and disgorgement from Bexson for any benefits obtained in violation of the In Vivo Agreement. On September 27, 2024, Bexson filed a Motion to Dismiss the Verified Complaint. A Verified Amended Complaint was filed by CyDex on November 6, 2024, and a Motion to Dismiss the Verified Amended Complaint was filed by Bexson on January 17, 2025. On May 23, 2025, Bexson withdrew its pending Motion to Dismiss and filed a Verified Counterclaim, Answer, and Affirmative Defenses. On July 17, 2025, CyDex and Bexson agreed to a joint stipulation for a schedule on judgment on the pleadings, providing for briefing to be complete by November 17, 2025. CyDex filed its reply to Bexson’s counterclaim on July 23, 2025. On August 22, 2025, Bexson filed its opening brief in support of its motion for judgment on the pleadings. On September 25, 2025, CyDex filed its partial cross-motion for judgment on the pleadings and opposition to Bexson’s motion, and on October 27, 2025 Bexson filed its combined answering brief in opposition to CyDex’s motion and reply in support of its motion. CyDex anticipates filing a reply brief on November 17, 2025. On July 18, 2025, CyDex received a letter (the "Notice Letter") from PH Health Limited (“PH Health”), a wholly-owned indirect subsidiary of Endo, Inc., stating that PH Health had submitted to the U.S. Food and Drug Administration an Abbreviated New Drug Application (“ANDA”) referencing New Drug Application No. 022235, owned by Baxter Healthcare Corp. (“Baxter”) for Captisol®-enabled Nexterone® (amiodarone hydrochloride, 150 mg/100 mL, premixed for injection). In its Notice Letter, PH Health stated that its ANDA includes a certification under 21 U.S.C. § 355(j)(2)(A)(vii)(IV) that, in PH Health’s opinion, CyDex’s U.S. Patent No. 7,635,773 (“the ’773 patent”) is invalid, unenforceable and/or will not be infringed by Par Heath’s ANDA product. The Notice Letter included an explanation intended to support PH Health’s position that its ANDA product would not infringe the ’773 patent but did not include detailed explanations regarding invalidity or unenforceability. On August 29, 2025, during the 45 day period for filing a lawsuit pursuant to the Hatch-Waxman Act, Baxter and CyDex filed a lawsuit in the United States District Court for the Distinct of New Jersey against Par Health Ltd., Par Health USA, Endo USA, Inc., Endo Operations Limited, and Endo, Inc., asserting that the ANDA filing infringed the ’773 patent. See Case No. 3:25-cv-15120-MCA. An Answer has not yet been filed. From time to time, we may also become subject to other legal proceedings or claims arising in the ordinary course of our business. We currently believe that none of the claims or actions pending against us is likely to have, individually or in aggregate, a material adverse effect on our business, financial condition or results of operations. Given the unpredictability inherent in litigation, however, we cannot predict the outcome of these matters. Operating Leases In March 2025, we extended the lease agreement for our office located in Boston, Massachusetts for three years from May 2029 to May 2032, which resulted in a $0.8 million increase in both operating right-of-use assets and operating lease liabilities at lease commencement date. In May 2025, we commenced the expansion of the lease agreement for our office located in Boston, Massachusetts, for an additional 3,806 square feet, which resulted in a $1.5 million increase in both operating right-of-use assets and operating lease liabilities as of the lease commencement date. During the nine months ended September 30, 2024, we entered into a lease agreement for our office located in Boston, Massachusetts, which resulted in a $1.6 million increase in both operating lease assets and operating lease liabilities at lease commencement.