v3.26.1
Nature of Operations - Additional Information (Details)
1 Months Ended 12 Months Ended
Sep. 23, 2025
USD ($)
shares
Sep. 22, 2025
USD ($)
shares
Aug. 20, 2025
USD ($)
shares
Jul. 22, 2025
shares
Jun. 12, 2025
shares
Aug. 08, 2024
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
$ / shares
Organization and Business Operation [Line Items]                  
Common stock, per value (in Dollars per share) | $ / shares             $ 0.0001 $ 0.0001 $ 0.0001
Stockholders' equity note, stock split description               effected a 160,000-for-1 forward stock split of all outstanding shares of Common Stock which proportionally increased the number of all issued and outstanding shares of Common Stock from 1,000 to 160,000,000 and did not change the par value per share.  
Stockholders equity stock split conversion ratio           160,000      
Warrants exercisable for shares of common stock             7,432,122 7,432,122  
Warrants outstanding   8,760,000         7,432,122 7,432,122  
Exercise price, per share (in Dollars per share) | $ / shares             $ 11.5 $ 11.5  
Warrants expiration date               Sep. 30, 2027  
Cash and cash equivalents | $             $ 20,000 $ 20,000 $ 12,000
Accumulated deficit | $             $ (275,800,000) (275,800,000) (115,384,000)
Operating losses | $               160,416,000 4,690,000
Cash flows from operations | $               $ (5,867,000) $ (4,891,000)
Shares of common stock (in Shares)             300,000 300,000  
Warrants exercised on cashless basis             1,327,878    
Issuance of common stock upon cashless exercise of warrants             468,164    
Sponsor [Member]                  
Organization and Business Operation [Line Items]                  
Common stock held shares   2,072,500              
Debt Conversion, Original Debt, Amount | $   $ 100,000              
Consulting Services Agreement with JW Investment Management Company Limited [Member]                  
Organization and Business Operation [Line Items]                  
Percentage of cash financing service fee         7.00%     7.00%  
Scilex Holding Company [Member]                  
Organization and Business Operation [Line Items]                  
Common stock held shares   500,000              
Scilex Holding Company [Member] | Legacy Semnur Stock Options [Member]                  
Organization and Business Operation [Line Items]                  
Conversion of shares converted               40,000,000  
Scilex Holding Company [Member] | Stock Option [Member]                  
Organization and Business Operation [Line Items]                  
Conversion of shares issued               50,000,000  
Scilex Holding Company [Member] | Debt Exchange Agreement [Member]                  
Organization and Business Operation [Line Items]                  
Debt Conversion, Original Debt, Amount | $   $ 54,200,000              
Denali Capital Global Investments LLC [Member]                  
Organization and Business Operation [Line Items]                  
Business combination, prepaid expenses | $   12,000,000              
Business combination, accouts payable | $   4,400,000              
Business combination, related party liabilities | $   3,900,000              
Business combination, notes payable | $   $ 4,600,000              
Merger Agreement [Member]                  
Organization and Business Operation [Line Items]                  
Common stock exchange ratio               1.25  
Business combination shares exchanged   229,740,978              
Legacy Semnur Series A Preferred Stock [Member] | Scilex Holding Company [Member] | Debt Exchange Agreement [Member]                  
Organization and Business Operation [Line Items]                  
Debt conversion, converted instrument, shares issued   5,423,606              
Common Class B [Member]                  
Organization and Business Operation [Line Items]                  
Sale of stock price per share (in Dollars per share) | $ / shares             $ 0.0001 $ 0.0001  
Closing price of common stock | $ / shares             0.0001 $ 0.0001  
Agreed to purchase (in Shares)               500,000  
Aggregate consideration to purchase | $               $ 2,000,000  
Series A Preferred Stock [Member] | Scilex Holding Company [Member] | Debt Exchange Agreement [Member]                  
Organization and Business Operation [Line Items]                  
Debt conversion, converted instrument, shares issued   5,423,606              
Legacy Semnur Common Stock [Member] | Scilex Holding Company [Member]                  
Organization and Business Operation [Line Items]                  
Conversion of shares converted               160,000,000  
Common Stock [Member]                  
Organization and Business Operation [Line Items]                  
Sponsor transferred (in Shares)       3,200,000          
Issuance of common stock upon cashless exercise of warrants               468,164  
Common Stock [Member] | Sponsor [Member]                  
Organization and Business Operation [Line Items]                  
Conversion of shares converted   2,072,500              
Debt conversion, converted instrument, shares issued   12,488              
Common Stock [Member] | Securities Purchase Agreement (PIPE SPA)                  
Organization and Business Operation [Line Items]                  
Sponsor transferred (in Shares)     1,250,000            
Sale of stock per transaction | $     $ 16,000            
Total consideration | $     $ 20,000,000            
Common Stock [Member] | Bitcoin Securities Purchase Agreement [Member]                  
Organization and Business Operation [Line Items]                  
Sponsor transferred (in Shares) 6,250,000                
Sale of stock per transaction | $ $ 16,000                
Total consideration | $ $ 100,000,000                
Common Stock [Member] | Consulting Services Agreement with JW Investment Management Company Limited [Member]                  
Organization and Business Operation [Line Items]                  
Sponsor transferred (in Shares)       8,000,000 10,000,000     10,000,000  
Common Stock [Member] | Scilex Holding Company [Member]                  
Organization and Business Operation [Line Items]                  
Conversion of shares converted   500,000              
Conversion of shares issued               200,000,000  
Common Stock [Member] | Scilex Holding Company [Member] | Debt Exchange Agreement [Member]                  
Organization and Business Operation [Line Items]                  
Debt conversion, converted instrument, shares issued   542,361              
Warrant [Member]                  
Organization and Business Operation [Line Items]                  
Redemption of unexpired warrants, description               The Company may redeem any unexpired Warrants prior to their exercise at a price of $0.01 per Warrant, provided that the closing price of Common Stock equals or exceeds $16.50 per share (as adjusted for share subdivisions, share dividends, rights issuances, subdivisions, reorganizations, recapitalizations and the like) on each of 20 trading days within any 30-trading-day period commencing after the Warrants became exercisable and ending on the third trading day prior to the date on which notice of redemption is given. If and when the Warrants become redeemable, the Company may exercise its redemption right even if they are unable to register or qualify the underlying securities for sale under all applicable state securities laws. In addition, the Company may redeem the Warrants at any time after they become exercisable and prior to their expiration for a number of shares of Common Stock determined based on the fair market value of Common Stock.  
Exercise price, per share (in Dollars per share) | $ / shares             0.01 $ 0.01  
Closing price of common stock | $ / shares             $ 16.5 $ 16.5  
Consultants [Member] | Merger Agreement [Member]                  
Organization and Business Operation [Line Items]                  
Business combination shares exchanged   26,500,000              
Underwriters [Member] | Merger Agreement [Member]                  
Organization and Business Operation [Line Items]                  
Business combination shares exchanged   100,000