v3.26.3
Stockholders' Equity - Summary of Common Stock Shares Activity (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 25, 2026
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Common Stock Outstanding Roll Forward [Roll Forward]          
Beginning balance   $ 66,930 $ 44,467 $ 49,376 $ 55,077
Beginning balance (in shares)       5,442,688  
Net loss   (8,458) (8,591) $ (22,360) (20,867)
Stock-based compensation expense   562 526 1,710 2,165
Common stock issued through employee stock purchase plan   13 25 30 51
Common stock issued for vested restricted stock units       0 0
Common stock issued for Shares, net of offering costs     3 21,072 4
Proceeds allocated for Pre-Funded Warrants, net of offering costs       5,305  
Reclass of warrant liability for March 2026 Private Placement $ 3,900     3,914  
Ending balance   $ 59,047 36,430 $ 59,047 36,430
Ending balance (in shares)   9,952,738   9,952,738  
Common Stock          
Common Stock Outstanding Roll Forward [Roll Forward]          
Beginning balance   $ 10 $ 5 $ 5 $ 5
Beginning balance (in shares)   9,949,609 4,896,867 5,442,688 4,746,748
Net loss   $ 0 $ 0 $ 0 $ 0
Stock-based compensation expense   0 0 0 0
Common stock issued through employee stock purchase plan   $ 0 $ 0 $ 0 $ 0
Common stock issued through employee stock purchase (in shares)   3,129 3,972 6,729 7,936
Common stock issued for vested restricted stock units       $ 0 $ 0
Common stock issued for vested restricted stock units (in shares)       159,571 146,155
Common stock issued for Shares, net of offering costs     $ 0 $ 5 $ 0
Common stock issued for Shares, net of offering costs (in shares)     343,750 4,343,750 343,750
Proceeds allocated for Pre-Funded Warrants, net of offering costs       $ 0  
Reclass of warrant liability for March 2026 Private Placement       0  
Ending balance   $ 10 $ 5 $ 10 $ 5
Ending balance (in shares)   9,952,738 5,244,589 9,952,738 5,244,589
Additional Paid-in Capital          
Common Stock Outstanding Roll Forward [Roll Forward]          
Beginning balance   $ 465,966 $ 433,273 $ 434,515 $ 431,607
Net loss   0 0 0 0
Stock-based compensation expense   562 526 1,710 2,165
Common stock issued through employee stock purchase plan   13 25 30 51
Common stock issued for vested restricted stock units       0 0
Common stock issued for Shares, net of offering costs     3 21,067 4
Proceeds allocated for Pre-Funded Warrants, net of offering costs       5,305  
Reclass of warrant liability for March 2026 Private Placement       3,914  
Ending balance   466,541 433,827 466,541 433,827
Accumulated Deficit          
Common Stock Outstanding Roll Forward [Roll Forward]          
Beginning balance   (399,046) (388,811) (385,144) (376,535)
Net loss   (8,458) (8,591) (22,360) (20,867)
Stock-based compensation expense   0 0 0 0
Common stock issued through employee stock purchase plan   0 0 0 0
Common stock issued for vested restricted stock units       0 0
Common stock issued for Shares, net of offering costs     0 0 0
Proceeds allocated for Pre-Funded Warrants, net of offering costs       0  
Reclass of warrant liability for March 2026 Private Placement       0  
Ending balance   $ (407,504) $ (397,402) $ (407,504) $ (397,402)