Nature of Operations - Additional Information (Details)
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3 Months Ended |
12 Months Ended |
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Sep. 23, 2025
USD ($)
shares
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Sep. 22, 2025
USD ($)
shares
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Aug. 20, 2025
USD ($)
shares
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Jul. 22, 2025
shares
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Jun. 12, 2025
shares
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Mar. 31, 2026
USD ($)
$ / shares
shares
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Mar. 31, 2025
USD ($)
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Dec. 31, 2025
USD ($)
$ / shares
shares
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| Organization and Business Operation [Line Items] |
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| Common stock, per value (in Dollars per share) | $ / shares |
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$ 0.0001
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$ 0.0001
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| Common stock, shares issued |
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230,209,142
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230,209,142
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| Warrants outstanding |
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7,432,122
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| Exercise price, per share (in Dollars per share) | $ / shares |
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$ 11.5
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| Warrants expiration date |
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Sep. 30, 2027
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| Warrants exercised on cashless basis |
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1,327,878
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| Issuance of common stock upon cashless exercise of warrants |
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468,164
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| Warrants exercisable for shares of common stock |
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7,432,122
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| Cash and cash equivalents | $ |
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$ 103,000
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$ 20,000
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| Accumulated deficit | $ |
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(280,376,000)
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$ (275,800,000)
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| Operating losses | $ |
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4,576,000
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$ 665,000
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| Cash flows from operations | $ |
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$ (2,670,000)
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$ (399,000)
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| Shares of common stock (in Shares) |
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300,000
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| Sponsor [Member] |
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| Organization and Business Operation [Line Items] |
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| Common stock held shares |
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2,072,500
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| Debt conversion original debt amount | $ |
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$ 100,000
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| Securities Purchase Agreement (PIPE SPA) |
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| Organization and Business Operation [Line Items] |
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| Common stock, shares issued |
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0
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| Consulting Services Agreement with JW Investment Management Company Limited [Member] |
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| Organization and Business Operation [Line Items] |
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| Percentage of cash financing service fee |
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7.00%
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7.00%
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| Scilex Holding Company [Member] |
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| Organization and Business Operation [Line Items] |
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| Common stock held shares |
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500,000
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| Scilex Holding Company [Member] | Legacy Semnur Stock Options [Member] |
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| Organization and Business Operation [Line Items] |
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| Conversion of shares converted |
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400,000,000
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| Scilex Holding Company [Member] | Stock Option [Member] |
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| Organization and Business Operation [Line Items] |
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| Conversion of shares issued |
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50,000,000
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| Scilex Holding Company [Member] | Debt Exchange Agreement [Member] |
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| Organization and Business Operation [Line Items] |
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| Debt conversion original debt amount | $ |
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$ 54,200,000
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| Denali Capital Global Investments LLC [Member] |
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| Organization and Business Operation [Line Items] |
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| Business combination, prepaid expenses | $ |
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12,000
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| Business combination, accouts payable | $ |
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4,400,000
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| Business combination, related party liabilities | $ |
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3,900,000
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| Business combination, notes payable | $ |
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$ 4,600,000
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| Merger Agreement [Member] |
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| Organization and Business Operation [Line Items] |
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| Common stock exchange ratio |
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1.25
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| Business combination shares exchanged |
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229,740,978
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| Legacy Semnur Series A Preferred Stock [Member] | Scilex Holding Company [Member] | Debt Exchange Agreement [Member] |
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| Organization and Business Operation [Line Items] |
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| Debt conversion, converted instrument, shares issued |
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5,423,606
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| Class B Ordinary Shares [Member] |
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| Organization and Business Operation [Line Items] |
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| Sale of stock price per share (in Dollars per share) | $ / shares |
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$ 0.0001
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| Per public share (in Dollars per share) | $ / shares |
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$ 0.0001
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| Agreed to purchase (in Shares) |
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500,000
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| Aggregate consideration to purchase | $ |
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$ 2,000,000
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| Series A Preferred Stock [Member] | Scilex Holding Company [Member] | Debt Exchange Agreement [Member] |
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| Organization and Business Operation [Line Items] |
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| Debt conversion, converted instrument, shares issued |
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5,423,606
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| Legacy Semnur Common Stock [Member] | Scilex Holding Company [Member] |
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| Organization and Business Operation [Line Items] |
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| Conversion of shares converted |
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160,000,000
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| Common Stock [Member] | Sponsor [Member] |
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| Organization and Business Operation [Line Items] |
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| Conversion of shares converted |
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2,072,500
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| Debt conversion, converted instrument, shares issued |
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12,488
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| Common Stock [Member] | Securities Purchase Agreement (PIPE SPA) |
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| Organization and Business Operation [Line Items] |
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| Sponsor transferred (in Shares) |
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1,250,000
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| Sale of stock per transaction | $ |
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$ 16,000
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| Total consideration | $ |
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$ 20,000,000
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| Common Stock [Member] | Bitcoin Securities Purchase Agreement [Member] |
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| Organization and Business Operation [Line Items] |
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| Sponsor transferred (in Shares) |
6,250,000
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| Sale of stock per transaction | $ |
$ 16,000
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| Total consideration | $ |
$ 100,000,000
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| Common Stock [Member] | Consulting Services Agreement with JW Investment Management Company Limited [Member] |
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| Organization and Business Operation [Line Items] |
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| Sponsor transferred (in Shares) |
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8,000,000
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10,000,000
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10,000,000
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| Common Stock [Member] | Scilex Holding Company [Member] |
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| Organization and Business Operation [Line Items] |
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| Conversion of shares converted |
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500,000
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| Conversion of shares issued |
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200,000,000
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| Common Stock [Member] | Scilex Holding Company [Member] | Debt Exchange Agreement [Member] |
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| Organization and Business Operation [Line Items] |
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| Debt conversion, converted instrument, shares issued |
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542,361
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| Warrant [Member] |
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| Organization and Business Operation [Line Items] |
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| Exercise price, per share (in Dollars per share) | $ / shares |
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$ 0.01
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| Per public share (in Dollars per share) | $ / shares |
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$ 16.5
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| Redemption of unexpired warrants, description |
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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.
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| Consultants [Member] | Merger Agreement [Member] |
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| Organization and Business Operation [Line Items] |
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| Business combination shares exchanged |
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26,500,000
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| Underwriters [Member] | Merger Agreement [Member] |
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| Organization and Business Operation [Line Items] |
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| Business combination shares exchanged |
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100,000
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