Quarterly report pursuant to Section 13 or 15(d)

Property, Plant and Equipment - Summary of Property, Plant, and Equipment (Detail)

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Property, Plant and Equipment - Summary of Property, Plant, and Equipment (Detail) - USD ($)
$ in Thousands
Sep. 30, 2024
Dec. 31, 2023
Property Plant And Equipment [Line Items]    
Total property, plant, and equipment before depreciation and land $ 14,783 $ 16,695
Accumulated depreciation and amortization (11,287) (11,330)
Property, plant, and equipment, net before land 3,496 5,365
Land 162 160
Property, plant, and equipment, net 3,658 5,525
Building    
Property Plant And Equipment [Line Items]    
Total property, plant, and equipment before depreciation and land 207 205
Leasehold Improvements    
Property Plant And Equipment [Line Items]    
Total property, plant, and equipment before depreciation and land 1,251 1,251
Equipment and Computers    
Property Plant And Equipment [Line Items]    
Total property, plant, and equipment before depreciation and land 12,806 14,628
Furniture and Fixtures    
Property Plant And Equipment [Line Items]    
Total property, plant, and equipment before depreciation and land 519 519
Construction in Progress    
Property Plant And Equipment [Line Items]    
Total property, plant, and equipment before depreciation and land $ 0 $ 92