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Stock-Based Compensation - Restricted Stock Units (Detail) - Restricted Stock Units (RSUs) [Member] - $ / shares
6 Months Ended 12 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
2007 Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Unvested Shares, Beginning Balance   76,217 38,669
Granted, Shares   5,313 92,625
Vested, Shares   (19,829) (46,551)
Forfeited, Shares   (28,300) (8,526)
Unvested Shares, Ending Balance 33,401 33,401 76,217
Unvested, Weighted-Average Grant-Date Fair Value, Beginning Balance   $ 15 $ 30.8
Granted, Weighted-Average Grant-Date Fair Value   9.41 12.14
Vested, Weighted-Average Grant-Date Fair Value   23.5 19.75
Forfeited, Weighted-Average Grant-Date Fair Value   9.65 20.42
Unvested, Weighted-Average Grant-Date Fair Value, Ending Balance $ 13.14 $ 13.14 $ 15
2025 Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted, Shares 46,250    
Unvested Shares, Ending Balance 46,250 46,250  
Granted, Weighted-Average Grant-Date Fair Value $ 4.05    
Unvested, Weighted-Average Grant-Date Fair Value, Ending Balance $ 4.05 $ 4.05