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Net Income (Loss) Per Common Share
 3 Months Ended
Mar. 31, 2025
Earnings Per Share [Abstract]  
Net Income (Loss) Per Common Share Net Loss Per Common Share
The following table summarizes the computation of basic and diluted net loss per common share.
 Three Months Ended
March 31,
 20252024
Numerator:
Net loss$(6,685)$(12,537)
Adjustment for preferred stock cumulative dividends and deemed dividends(4,407)(3,670)
Numerator for basic and diluted net loss per common share$(11,092)$(16,207)
Denominator:
Weighted average common shares outstanding49,987 48,488 
Adjustment for participating securities(2,372)(3,454)
Adjustment for warrants outstanding (1)1,460 2,690 
Shares used to calculate basic and diluted net loss per share49,075 47,724 
Basic and diluted net loss per common share$(0.23)$(0.34)
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(1)     Outstanding warrants that are exercisable at an exercise price of $0.01 per share, are included in shares outstanding for calculation of basic earnings per share (see Note 16).
The following table presents securities that could be potentially dilutive in the future that were excluded from the calculation of diluted net loss per common share because they had an anti-dilutive effect.
Three Months Ended
March 31,
20252024
Stock options168 257 
Warrants1,500 1,500 
Performance share units820 268 
Total antidilutive securities2,488 2,025 
Stock options excluded from the calculations of diluted net loss per share have a per share exercise price ranging from $7.93 to $25.16 for the three months ended March 31, 2025. Warrants excluded from the calculation of diluted net loss per share have a per share exercise price of $11.03 (see Note 16). Performance share units are potentially dilutive when the related performance criterion has been met.