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NATURE OF OPERATIONS AND LIQUIDITY - Additional Information (Details) - USD ($)
1 Months Ended 9 Months Ended
Jan. 19, 2021
Jan. 31, 2021
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Nature Of Operations And Liquidity [Line Items]          
Accumulated deficit     $ 391,104,515   $ 396,815,428
Net cash used in operating activities     14,383,783 $ 8,793,347  
Cash, cash equivalents, restricted cash and marketable securities     26,600,000    
Minimum market value of listed securities required for continued listing     $ 35,000,000    
Seltorexant | Royalty Pharma          
Nature Of Operations And Liquidity [Line Items]          
Up front payment $ 60,000,000 $ 60,000,000      
Maximum | Seltorexant | Royalty Pharma          
Nature Of Operations And Liquidity [Line Items]          
Additional milestone payments   $ 95,000,000