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Industrial Seed Innovations Acquisition - Additional Information (Detail)
1 Months Ended 12 Months Ended
Aug. 21, 2020
USD ($)
Installment
shares
Aug. 31, 2020
USD ($)
shares
Dec. 31, 2020
USD ($)
Installment
Term
shares
Dec. 31, 2019
USD ($)
Business Acquisition [Line Items]        
Revenues     $ 8,034,000 $ 1,169,000
Intangible assets     $ 370,000  
Existence of option to extend     true  
Lease option to extend, description     Some leases (the Davis office, warehouse, greenhouses and a copy machine) include one or more options to renew, with renewal terms that can extend the lease term from one to six years.  
Maximum [Member]        
Business Acquisition [Line Items]        
Operating leases, term of contract     5 years  
Option to extend lease, term     6 years  
Minimum [Member]        
Business Acquisition [Line Items]        
Operating leases, term of contract     1 year  
Option to extend lease, term     1 year  
Industrial Seed Innovations [Member]        
Business Acquisition [Line Items]        
Purchase price consideration   $ 1,212,000    
Cash paid for Acquisition   500,000    
Business combination, equity interest issuable, value   $ 432,000    
Remaining amount paid in multiple installments $ 280,000   $ 280,000  
Revenues     $ 0  
Useful life of intangible assets amortized     5 years  
Intangible assets     $ 370,000  
Deferred tax liability     $ 107,000  
Operating leases, term of contract     3 years  
Existence of option to extend     true  
Lease option to extend, description     The lease was effective upon the execution of the definitive acquisition agreement and has a term of 3 years with the option to renew for three additional 3-year terms.  
Number of lease renewal term | Term     3  
Option to extend lease, term     3 years  
Industrial Seed Innovations [Member] | Selling, General and Administrative Expenses [Member]        
Business Acquisition [Line Items]        
Acquisition related costs     $ 67,000  
Common Stock [Member] | Industrial Seed Innovations [Member]        
Business Acquisition [Line Items]        
Business combination, equity interest issuable, shares | shares   132,626    
Number of annual installment of common stock shares payable | Installment 2   2  
Common Stock [Member] | Industrial Seed Innovations [Member] | Revenue Milestone in 2021 [Member] | Maximum [Member]        
Business Acquisition [Line Items]        
Business combination, equity interest issuable upon achievement of revenue milestone | shares 132,626   132,626  
Common Stock [Member] | Industrial Seed Innovations [Member] | Revenue Milestone in 2022 [Member] | Maximum [Member]        
Business Acquisition [Line Items]        
Business combination, equity interest issuable upon achievement of revenue milestone | shares 132,626   132,626