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Share-Based Compensation - Narrative (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares available for grant (in shares) | shares 1,800,000    
Inducement equity, common stock options outstanding, (in shares) | shares 150,000    
Inducement equity, common stock options granted, (in shares) | shares 150,000    
Share price (in dollars per share) $ 2.02    
Expected dividend yield 0.00%    
Total share-based compensation expenses | $ $ 2,689 $ 4,381  
Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share price (in dollars per share) $ 2.01    
Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share price (in dollars per share) $ 2.04    
Common Stock      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares issued under employee stock purchase plan (in shares) | shares 36,168 45,304  
Restricted Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) | shares 1,874,300    
Grant date fair value | $ $ 72    
Vesting period 30 days    
Average closing prices period 30 days    
Performance price threshold, vesting percentage limit 1.50    
Total share-based compensation expenses | $ $ 993 $ 127  
Restricted Stock Units | Market Condition Range One      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance price threshold, per share (in dollars per share) $ 1.75    
Performance price threshold, vesting percentage 0    
Restricted Stock Units | Market Condition Range Two      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance price threshold, per share (in dollars per share) $ 1.75    
Performance price threshold, vesting percentage 0.50    
Restricted Stock Units | Market Condition Range Four      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance price threshold, per share (in dollars per share) $ 2.50    
Performance price threshold, vesting percentage 1    
Restricted Stock Units | Market Condition Range Six      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance price threshold, per share (in dollars per share) $ 3.25    
Performance price threshold, vesting percentage 1.50    
Restricted Stock Units | Service Based      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) | shares 1,874,000 192,000  
Share-based payment arrangement, nonvested award, option, cost not yet r.ecognized, amount | $ $ 1,278    
Vesting period 3 years    
Equity instruments other than options, nonvested, number (in shares) | shares 1,948,000 162,000 0
Granted (in dollars per share) $ 0.91 $ 2.37  
Weighted average recognition period 2 years 2 months 4 days    
Restricted Stock Units | Market Based      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted (in shares) | shares 1,332,000    
Share-based payment arrangement, nonvested award, option, cost not yet r.ecognized, amount | $ $ 2,314    
Vesting period 3 years    
Equity instruments other than options, nonvested, number (in shares) | shares 1,332,000 0  
Granted (in dollars per share) $ 2.40    
Weighted average recognition period 2 years 4 months 2 days    
Restricted Stock Units | Minimum | Market Condition Range Three      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance price threshold, per share (in dollars per share) $ 1.76    
Performance price threshold, vesting percentage 0.5001    
Restricted Stock Units | Minimum | Market Condition Range Five      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance price threshold, per share (in dollars per share) $ 2.51    
Performance price threshold, vesting percentage 1.0001    
Restricted Stock Units | Maximum | Market Condition Range Three      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance price threshold, per share (in dollars per share) $ 2.50    
Performance price threshold, vesting percentage 0.9999    
Restricted Stock Units | Maximum | Market Condition Range Five      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance price threshold, per share (in dollars per share) $ 3.25    
Performance price threshold, vesting percentage 1.4999    
Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Granted (in dollars per share) $ 1.50 $ 1.46  
Granted (in shares) | shares 150,000 2,015,000  
Granted (in dollars per share) $ 2.02 $ 1.83  
Expected dividend yield 0.00%    
Cost not yet recognized, amount | $ $ 1,421    
Weighted average recognition period 1 year 21 days    
Weighted average remaining contract life 6 years 4 months 28 days 7 years 6 months 7 years 10 months 17 days
Total share-based compensation expenses | $ $ 1,669 $ 4,244  
Stock Options | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average remaining contract life 10 years    
Stock Options | Key Employees      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting period 3 years    
Employee Stock Purchase Plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Offering period term 6 months    
Employee stock purchase plan, purchase price percentage 85.00%    
Number of shares reserved for issuance (in shares) | shares 250,000    
Total share-based compensation expenses | $ $ 27 $ 10