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Stock Options - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Sep. 01, 2020
Share-based Payment Arrangement, Option      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares granted (in shares) 0 0  
Share-based compensation expense $ 100,000 $ 400,000  
Unrecognized share-based compensation expense 100,000    
Aggregated intrinsic value $ 0    
Plan 2020      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized (in shares)     3,000,000
Plan 2015      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares authorized (in shares) 57,800   216,767