Stockholders' Equity - At-the-Market Offering Agreement (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Mar. 15, 2024
Stockholder's Equity
Proceeds from sale of common stock		$ 2,348,000		$ 2,348,000
Proceeds from sale of common stock from sales through Common Stock Purchase Agreement			$ 12,838,000	$ 2,348,000
At The Market Offering Agreement
Stockholder's Equity
Maximum Value of Shares Authorized Under the Agreement					$ 100,000,000
Proceeds from sale of common stock (in shares)	12,777,393		19,423,375
Proceeds from sale of common stock	$ 15,802,000		$ 26,833,000
Proceeds after sales commissions	$ 15,800,000		$ 26,800,000
Per Share Weighted Average Price of Shares Issued	$ 1.27		$ 1.42
Proceeds from sale of common stock from sales through Common Stock Purchase Agreement	$ 16,200,000		$ 27,500,000
Sales agent commissions	400,000		700,000
Remaining value of shares under the program	$ 72,500,000		$ 72,500,000
At The Market Offering Agreement | Maximum
Stockholder's Equity
Sales agent commission payable, represented as a percentage of gross sales proceeds					3.00%