Description of Business - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Place of incorporation	Arizona
Year of incorporation	2002
Place of reincorporation	Delaware
Date of reincorporation	2015-03
Accumulated deficit	$ (257,859,000)	$ (226,485,000)
Cash and cash equivalents	20,644,000	28,685,000
Net loss	(15,612,000)	(16,134,000)
Net cash used in operations	(13,977,000)	(25,868,000)
Loss on sale of Arcadia Spain		497,000
Impairment charges	$ 160,000	$ 1,400,000
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.