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Share-Based Compensation - (Details)
$ / shares in Units, $ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
$ / shares
shares
Dec. 31, 2021
$ / shares
shares
Oct. 08, 2023
shares
Aug. 10, 2023
shares
Statements          
Options and RSU's outstanding (in shares) 7,500,732       2,816,224
Share reserve increase, number of years 10 years        
Options granted (in shares) 1,179,480 550,049 700,170    
Options, weighted average fair value (in dollars per share) | $ / shares $ 2.66 $ 0.81 $ 0.41    
2009 Plan          
Statements          
Options and RSU's outstanding (in shares) 1,915,724        
Unrecognized compensation expense, options | $ $ 250        
Unrecognized compensation expense, RSUs | $ $ 337        
2023 Plan          
Statements          
Options and RSU's outstanding (in shares) 5,585,008     5,585,008  
Percentage of fully diluted common stock determined in preceding year 5        
Unrecognized compensation expense, options | $ $ 3,002        
Restricted stock units          
Statements          
RSUs granted (in shares) 184,018        
RSU weighted average fair value (in dollars per share) | $ / shares $ 2.43        
Options to purchase common stock          
Statements          
Stock options exercise price, percentage of fair value 100