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Stock Incentive Plans - Inducement plan (Details) - shares
3 Months Ended
Jun. 02, 2023
Feb. 01, 2023
Mar. 31, 2023
Jan. 31, 2023
Feb. 17, 2022
2022 Inducement Stock Incentive Plan          
Stock Incentive Plans          
Number of shares authorized     700,000 300,000 300,000
Number of grants issued     232,800    
2015 Amended and Restated Stock Incentive Plan          
Stock Incentive Plans          
Number of shares issued   855,000      
Outstanding shares   755,000      
Number of additional shares authorized 4,300,000