Description of Business - Additional Information (Detail) - USD ($)	1 Months Ended	12 Months Ended
	Nov. 30, 2020	Dec. 31, 2023	Dec. 31, 2022
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Place of incorporation		Arizona
Year of incorporation		2002
Place of reincorporation		Delaware
Date of reincorporation		2015-03
Accumulated deficit		$ (271,840,000)	$ (257,859,000)
Cash and cash equivalents		6,518,000	20,644,000
Short-term investments		5,124,000	0
Net loss		(13,986,000)	(15,612,000)
Net cash used in operations		$ (15,294,000)	(13,977,000)
Reverse stock split		In February 2023, the Company’s board of directors approved a reverse split of 40:1 on the Company’s issued and outstanding common stock.
Additional shares of common stock of reverse stock split		19,118
License revenue		$ 5,330,000	7,418,000
Gain on sale of Verdeca		0	1,138,000
Payment received on accounts and other receivable		0	569,000
Verdeca LLC [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Gain on sale of Verdeca			1,100,000
Bioceres Crop Solutions [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
License revenue			$ 862,000
Bioceres Crop Solutions [Member] | Verdeca LLC [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Additional cash receivable from sale of interest in joint venture	$ 2,000,000
Payment received on accounts and other receivable		$ 2,000,000
Bioceres Crop Solutions [Member] | Maximum [Member] | Verdeca LLC [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Cash shares and royalty receivable	$ 10,000,000