Technology Acquisition Agreement	12 Months Ended
Dec. 31, 2022
Technology Acquisition Agreement [Abstract]
Technology Acquisition Agreement	4. Technology Acquisition Agreement In June 2007, the Company acquired all worldwide rights, data, patents and other related assets associated with Gimoti from Questcor Pharmaceuticals, Inc. (“Questcor”) pursuant to an asset purchase agreement. The Company paid Questcor $650,000 in the form of an upfront payment and $500,000 in May 2014 as a milestone payment based upon the initiation of the first patient dosing in the Company’s Phase 3 clinical trial for Gimoti. In August 2014, Mallinckrodt, plc (“Mallinckrodt”) acquired Questcor. As a result of that acquisition, Questcor transferred its rights included in the asset purchase agreement with the Company to Mallinckrodt. In addition to the payments previously made to Questcor, the Company may also be required to make additional milestone payments totaling up to $52 million. In March 2018, the Company and Mallinckrodt amended the asset purchase agreement to defer development and approval milestone payments, such that, rather than paying two milestone payments based on FDA acceptance for review of the NDA and final product marketing approval, the Company would be required to make a single $5 million payment on the one-year anniversary after the Company receives FDA approval to market Gimoti. At the time of the Gimoti NDA approval, the Company recorded the $5 million payable owed to Mallinckrodt, along with a $5 million research and development expense. The $5 million milestone payment was paid in July 2021. The remaining $47 million in milestone payments depended on Gimoti’s commercial success. The Company was required to pay Mallinckrodt a low single digit royalty percentage on net sales of Gimoti. As of December 31, 2022, the Company has paid Mallinckrodt approximately $134,000 in royalties on net sales of Gimoti. The Company’s obligation to pay such royalties and milestones terminated due to the expiration of the last patent right covering Gimoti transferred under the asset purchase agreement.

Technology Acquisition Agreement

12 Months Ended

Dec. 31, 2022

Technology Acquisition Agreement [Abstract]

4. Technology Acquisition Agreement

In June 2007, the Company acquired all worldwide rights, data, patents and other related assets associated with Gimoti from Questcor Pharmaceuticals, Inc. (“Questcor”) pursuant to an asset purchase agreement. The Company paid Questcor $650,000 in the form of an upfront payment and $500,000 in May 2014 as a milestone payment based upon the initiation of the first patient dosing in the Company’s Phase 3 clinical trial for Gimoti. In August 2014, Mallinckrodt, plc (“Mallinckrodt”) acquired Questcor. As a result of that acquisition, Questcor transferred its rights included in the asset purchase agreement with the Company to Mallinckrodt. In addition to the payments previously made to Questcor, the Company may also be required to make additional milestone payments totaling up to $52 million. In March 2018, the Company and Mallinckrodt amended the asset purchase agreement to defer development and approval milestone payments, such that, rather than paying two milestone payments based on FDA acceptance for review of the NDA and final product marketing approval, the Company would be required to make a single $5 million payment on the one-year anniversary after the Company receives FDA approval to market Gimoti. At the time of the Gimoti NDA approval, the Company recorded the $5 million payable owed to Mallinckrodt, along with a $5 million research and development expense. The $5 million milestone payment was paid in July 2021.

The remaining $47 million in milestone payments depended on Gimoti’s commercial success. The Company was required to pay Mallinckrodt a low single digit royalty percentage on net sales of Gimoti. As of December 31, 2022, the Company has paid Mallinckrodt approximately $134,000 in royalties on net sales of Gimoti. The Company’s obligation to pay such royalties and milestones terminated due to the expiration of the last patent right covering Gimoti transferred under the asset purchase agreement.