Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.5.0.2
Commitments and Contingencies - Additional Information (Detail)
 3 Months Ended 9 Months Ended
Dec. 31, 2016
USD ($)
a
Well
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Jul. 05, 2016
a
Loss Contingencies [Line Items]        
Estimated cost | $   $ 10,125,475 $ 3,044,851  
Espinosa Road [Member]        
Loss Contingencies [Line Items]        
Area of nonfarmable land | a       4.5
Bear Mountain [Member]        
Loss Contingencies [Line Items]        
Expended or accrued for capital improvements | $   $ 7,900,000    
Scenario, Forecast [Member] | Bear Mountain [Member]        
Loss Contingencies [Line Items]        
Removal area of old grape vineyards | a 274      
Number of new drilling wells | Well 3      
Area of new almond trees (over) | a 800      
Estimated cost | $ $ 8,000,000