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Nature of Business (Details)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended 17 Months Ended 19 Months Ended
Jul. 28, 2023
USD ($)
Jul. 24, 2020
USD ($)
Jun. 30, 2024
USD ($)
$ / shares
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
$ / shares
Jun. 30, 2023
USD ($)
Dec. 31, 2021
USD ($)
Jul. 31, 2023
USD ($)
Dec. 31, 2023
$ / shares
Mar. 31, 2023
USD ($)
$ / shares
shares
Nov. 15, 2019
Employee
Nature of Business                      
Number of employees | Employee                     0
Common stock issued or sold under the ATM Offering             $ 3,353,059 $ 0      
Issuance of common stock       $ 1,953              
Cash commission of gross proceeds of sales of common stock, percentage   3.00%                  
Proceeds from stock purchase agreement         $ 0 $ 5,000          
Equity investment in cash                   $ 5,000  
Cash consideration transferrred $ 8,000                    
Operating expenses $ 2,400   $ 1,384 $ 1,865 $ 3,002 $ 5,140          
Preferred stock, par value (in dollars per share) | $ / shares     $ 0   $ 0       $ 0    
Series A Convertible Preferred Stock                      
Nature of Business                      
Preferred stock, shares issued | shares                   351,037  
Preferred stock, par value (in dollars per share) | $ / shares                   $ 8.68  
Common Stock                      
Nature of Business                      
Common stock shares issued | shares                   225,000  
ATM Offering | Jefferies LLC                      
Nature of Business                      
Proceeds from stock purchase agreement             $ 12,500        
ATM Offering | Maximum | Jefferies LLC                      
Nature of Business                      
Issuance of common stock   $ 50,000                  
Cyclerion Securities Corporation                      
Nature of Business                      
Commercialization milestone payments         $ 585,000            
Tisento Therapeutics Holdings Inc                      
Nature of Business                      
Outstanding equity securities 10.00%