Strategic Agreements - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended	6 Months Ended
Sep. 30, 2017	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenues		$ 447,000	$ 646,000	$ 768,000	$ 1,142,000
Non Refundable Upfront Payment Received	$ 17,500,000
Earn-out revenues		324,000	512,000	496,000	934,000
Collaborative Research and Development and Other Revenues [Member]
Collaborative Arrangements And Noncollaborative Arrangement Transactions [Line Items]
Total revenues		$ 428,000	$ 606,000	$ 749,000	$ 1,102,000

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details