v3.26.1
Share-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule Share-Based Compensation Expense The following table summarizes the components of share-based compensation expense for the three and six months ended June 30, 2026 and 2025 (in thousands):
Three Months Ended June 30,Six Months Ended June 30,
2026202520262025
Research and development$36 $27 $107 $153 
General and administrative178 212 471 616 
Total share-based compensation expense$214 $239 $578 $769 

Total compensation cost related to unvested awards not yet recognized and the weighted-average periods over which the awards were expected to be recognized at June 30, 2026 were as follows (in thousands):
Stock OptionsRestricted Stock UnitsRestricted Stock
Unrecognized compensation cost$224 $158 $598 
Expected weighted-average period in years of compensation cost to be recognized1.740.531.82
Schedule of Fair Value of Shares Vested and Weighted Average Estimated Fair Values of Shares Granted
Total fair value of shares vested and the weighted average estimated fair values of shares granted for the six months ended June 30, 2026 and 2025 were as follows (in thousands):
Stock OptionsWarrants
Six Months Ended June 30,Six Months Ended June 30,
2026202520262025
Total fair value of shares vested$218 $264 $— $150 
Weighted average estimated fair value of shares granted$1.34 $2.60 $— $—