Annual report pursuant to Section 13 and 15(d)

Note 1 - Organization, Plan of Business Operations (Details Textual)

v3.24.1
Note 1 - Organization, Plan of Business Operations (Details Textual)
 1 Months Ended 12 Months Ended
Mar. 06, 2024
Nov. 02, 2023
USD ($)
Oct. 31, 2023
$ / shares
shares
Sep. 08, 2023
USD ($)
$ / shares
shares
Jan. 27, 2023
USD ($)
$ / shares
shares
Oct. 31, 2022
USD ($)
$ / shares
shares
Sep. 23, 2022
shares
Sep. 30, 2016
shares
Oct. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Jan. 31, 2024
$ / shares
shares
Jan. 09, 2024
$ / shares
shares
Jan. 05, 2024
$ / shares
Nov. 30, 2023
Feb. 02, 2023
shares
Feb. 01, 2023
shares
Jan. 30, 2023
shares
Jul. 25, 2022
shares
May 11, 2022
USD ($)
Dec. 31, 2021
$ / shares
Common Stock, Shares Authorized (in shares) | shares             20,000,000     75,000,000 20,000,000         75,000,000 20,000,000 55,000,000 50,000,000    
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares           $ 0.01     $ 0.01 $ 0.49 $ 1.55                   $ 9.98
Warrants and Rights Outstanding, Term (Year)           5 years     5 years                        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares           545,454     545,454                        
Percentage Of Warrants Issued           15.00%     15.00%                        
Class of Warrant or Right, Exercisable During Period (in shares) | shares           949,900                              
Class of Warrant or Right, Issued During Period (in shares) | shares           949,900       49,479,398 5,166,119                    
Stock Issued During Period, Shares, New Issues (in shares) | shares               250,000                          
Net Proceeds from Issuance Initial Public Offering | $           $ 10.3                              
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares     $ 0.0001             $ 0.0001 $ 0.0001                    
Proceeds from Issuance of Private Placement | $       $ 600,000                                  
Retained Earnings (Accumulated Deficit) | $                   $ (90,928,000) $ (80,551,000)                    
Subsequent Event [Member]                                          
Common Stock, Shares Authorized (in shares) | shares                         200,000,000                
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares                         $ 0.0001                
January 2023 Warrants [Member]                                          
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares         $ 1.55         $ 1.55                      
Warrants and Rights Outstanding, Term (Year)         3 years                                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares         1,940,299                                
Class of Warrants or Rights, Offering Price (in dollars per share) | $ / shares         $ 0.125                                
January 2023 Warrants [Member] | Subsequent Event [Member]                                          
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares                       $ 0.3006                  
Series A Warrants Associated with November 2023 Public Offering [Member]                                          
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares     $ 0.3006                                    
Warrants and Rights Outstanding, Term (Year)     5 years                                    
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares     1                                    
Series A Warrants Associated with November 2023 Public Offering [Member] | Subsequent Event [Member]                                          
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares                           $ 0.3006              
Series B Warrants Associated with November 2023 Public Offering [Member]                                          
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares     $ 0.3006                                    
Warrants and Rights Outstanding, Term (Year)     18 months                                    
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares     1                                    
Series B Warrants Associated with November 2023 Public Offering [Member] | Subsequent Event [Member]                                          
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares                           $ 0.3006              
Prefunded Warrant [Member]                                          
Number Of Warrants Issued For A Unit     1                                    
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares     $ 0.0001                                    
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares) | shares     1                                    
Warrants to Certain Investors [Member] | Subsequent Event [Member]                                          
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares                       $ 0.3006                  
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares                       14,600,000                  
Units [Member]                                          
Units Issued During Period, Shares, New Issues (in shares) | shares     3,853,400           2,652,065                        
Number Of Shares Issued For A Unit     1     1                              
Number Of Warrants Issued For A Unit           1                              
Units, Price Per Share (in dollars per share) | $ / shares     $ 0.3006     $ 3.3     $ 3.3                        
Pre Funded Units [Member]                                          
Units Issued During Period, Shares, New Issues (in shares) | shares     12,780,000           984,300                        
Number Of Shares Issued For A Unit           1                              
Number Of Warrants Issued For A Unit           1                              
Number Of Common Shares To Be Purchased For Each Unit           1                              
Units, Price Per Share (in dollars per share) | $ / shares     $ 0.3005     $ 3.2999     $ 3.2999                        
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares           $ 0.0001     $ 0.0001                        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares           545,454     545,454                        
Stock Issued During Period, Shares, New Issues (in shares) | shares           949,900                              
Securities Purchase Agreement [Member]                                          
Units Issued During Period, Shares, New Issues (in shares) | shares     16,633,400                                    
Stock Issued During Period, Shares, New Issues (in shares) | shares         448,000                                
Shares Issued, Price Per Share (in dollars per share) | $ / shares         $ 1.55                                
Prefunded Warrant [Member]                                          
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares         $ 0.001                                
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares         1,492,299                                
Class of Warrants or Rights, Price Less Than Stock Issuance Price (in dollars per share) | $ / shares         $ 0.001                                
January 2023 Registered Direct Offering and Private Placement [Member]                                          
Proceeds from Issuance or Sale of Equity | $         $ 2,800,000                                
Private Placement [Member]                                          
Sale of Stock, Number of Shares Issued in Transaction (in shares) | shares       767,085                                  
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares       $ 0.0001                                  
Sale of Stock, Consideration Received on Transaction | $       $ 600,000                                  
Sale of Stock, Price Per Share (in dollars per share) | $ / shares       $ 0.717                                  
November 2023 Public Offering [Member]                                          
Sale of Stock, Cash Transaction Fees, Percentage of Gross Cash Proceeds                             8.00%            
Proceeds from Issuance or Sale of Equity | $   $ 3,800,000                                      
Invagen Pharmaceuticals Inc [Member]                                          
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares                 388,888                        
Sale of Stock, Cash Transaction Fees, Percentage of Gross Cash Proceeds                     7.50%                    
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | $                     $ 4,000,000                    
Payments for Stock Purchase Costs | $                   $ 500,000 $ 500,000                    
Invagen Pharmaceuticals Inc [Member] | General and Administrative Expense [Member]                                          
Business Combination, Consideration Transferred | $                 $ 1,900,000                        
Reverse Stock Split [Member]                                          
Stockholders' Equity Note, Stock Split, Conversion Ratio             15                            
Invagen Pharmaceuticals Inc [Member]                                          
Percentage of Repurchase of Ownership Equity.                                       100.00%  
Minimum [Member] | Reverse Stock Split [Member] | Subsequent Event [Member]                                          
Stockholders' Equity Note, Stock Split, Conversion Ratio 30                                        
Fortress [Member] | Contribution Agreement [Member]                                          
Percentage of Transfer Ownership                                       100.00%  
Fortress [Member] | Contribution Agreement [Member] | Minimum [Member]                                          
Gross Proceeds from Equity Financing | $                                       $ 7,500,000