Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.19.3.a.u2
Commitments and Contingencies - Additional Information (Detail)
$ in Thousands
 12 Months Ended
Jun. 01, 2017
lease
farm
Dec. 31, 2019
USD ($)
Dec. 31, 2018
USD ($)
Jan. 01, 2019
USD ($)
Loss Contingencies [Line Items]        
Number of farms acquired | farm 2      
Number of leases | lease 2      
Operating lease right-of-use assets   $ 178    
Operating lease liabilities   $ 172    
Weighted-average discount rate   4.20%    
Lease expense   $ 50 $ 48  
ASU 2016-02        
Loss Contingencies [Line Items]        
Operating lease right-of-use assets       $ 218
Operating lease liabilities       $ 213
Minimum | ASU 2016-02        
Loss Contingencies [Line Items]        
Weighted-average discount rate       2.47%
Maximum | ASU 2016-02        
Loss Contingencies [Line Items]        
Weighted-average discount rate       2.53%