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Stock Options - Summary of stock option and Restricted Stock option activity (Details) - Restricted Stock Units - $ / shares
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
2013 Stock Plan    
Stock Options    
Number of Restricted Stock Units, Granted 28,804  
2021 Stock Plan    
Stock Options    
Number of Restricted Stock Units, Granted 20,952  
Equity Plans    
Stock Options    
Number of Restricted Stock Units, Unvested at Beginning of the year 700,000  
Number of Restricted Stock Units, Granted 49,756 700,000
Number of Restricted Stock Units, Unvested at End of the year 749,756 700,000
Weighted-Average Grant Date Fair Value, Outstanding at Beginning of the year $ 5.59  
Weighted-Average Grant Date Fair Value, Granted 8.29 $ 5.59
Weighted-Average Grant Date Fair Value, Outstanding at End of the year $ 5.77 $ 5.59