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Stockholders' Equity (Deficit) - Summary of Stock Option Activity (Detail) - 2014 EIP and Inducement Plan - USD ($)
$ / shares in Units, $ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2024
Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]    
Outstanding, Shares, beginning balance 428,786  
Granted, Shares 16,500  
Exercised, Shares 0  
Forfeited or expired, Shares (121,311)  
Outstanding, Shares, ending balance 323,975 428,786
Outstanding, Weighted Average Exercise Price, beginning balance $ 290.75  
Granted, Weighted Average Exercise Price 11  
Exercised, Weighted Average Exercise Price 0  
Forfeited or expired, Weighted Average Exercise price 357.74  
Outstanding, Weighted Average Exercise Price, ending balance $ 251.42 $ 290.75
Outstanding, Weighted Average Remaining Contractual Term 7 years 6 years 6 months
Aggregate intrinsic value $ 0 $ 0