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Stock-Based Compensation Plan - Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Stock Based Compensation Plans [Line Items]      
Stock-based compensation expense $ 200,000 $ 200,000  
Aggregate intrinsic value of outstanding stock options 0    
Unamortized stock-based compensation expense for outstanding options $ 1,100,000    
Weighted average vesting period 2 years 1 month 6 days    
2022 Stock Incentive Plan      
Stock Based Compensation Plans [Line Items]      
Common stock shares reserved for future issuance     1,300,000
2022 Stock Incentive Plan | Maximum      
Stock Based Compensation Plans [Line Items]      
Expiration period (in years)     10 years
Research and Development Expenses      
Stock Based Compensation Plans [Line Items]      
Stock-based compensation expense $ 49,000 47,000  
General and Administrative Expenses      
Stock Based Compensation Plans [Line Items]      
Stock-based compensation expense $ 200,000 $ 200,000