Annual report pursuant to Section 13 and 15(d)

Real Estate and Lease Intangibles - Summary of Geographic Locations of Properties (Detail)

v2.4.1.9
Real Estate and Lease Intangibles - Summary of Geographic Locations of Properties (Detail) (USD $)
0 Months Ended 12 Months Ended 0 Months Ended
Sep. 30, 2014
Farm
Dec. 31, 2014
Farm
acre
Dec. 31, 2013
Farm
acre
Dec. 31, 2012
Dec. 31, 2014
Real Estate Properties [Line Items]          
Number of Farms 32land_NumberOfFarms 32land_NumberOfFarms 21land_NumberOfFarms    
Total Acres   8,039us-gaap_AreaOfRealEstateProperty 6,000us-gaap_AreaOfRealEstateProperty   8,039us-gaap_AreaOfRealEstateProperty
% of Total Acres   100.00%land_PercentageOfAreaOfLand 100.00%land_PercentageOfAreaOfLand    
Rental revenue   $ 7,170,318us-gaap_OperatingLeasesIncomeStatementLeaseRevenue $ 4,027,687us-gaap_OperatingLeasesIncomeStatementLeaseRevenue $ 3,390,594us-gaap_OperatingLeasesIncomeStatementLeaseRevenue  
% of Total Rental Revenue   100.00%land_PercentageOfRentalRevenue 100.00%land_PercentageOfRentalRevenue    
California [Member]          
Real Estate Properties [Line Items]          
Number of Farms   14land_NumberOfFarms
/ us-gaap_StatementGeographicalAxis
= stpr_CA
8land_NumberOfFarms
/ us-gaap_StatementGeographicalAxis
= stpr_CA
   
Total Acres   2,391us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_CA
1,454us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_CA
  2,391us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_CA
% of Total Acres   29.70%land_PercentageOfAreaOfLand
/ us-gaap_StatementGeographicalAxis
= stpr_CA
24.20%land_PercentageOfAreaOfLand
/ us-gaap_StatementGeographicalAxis
= stpr_CA
  29.70%land_PercentageOfAreaOfLand
/ us-gaap_StatementGeographicalAxis
= stpr_CA
Rental revenue   4,778,579us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_CA
3,362,020us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_CA
   
% of Total Rental Revenue   66.60%land_PercentageOfRentalRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_CA
83.50%land_PercentageOfRentalRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_CA
   
Oregon [Member]          
Real Estate Properties [Line Items]          
Number of Farms   4land_NumberOfFarms
/ us-gaap_StatementGeographicalAxis
= stpr_OR
2land_NumberOfFarms
/ us-gaap_StatementGeographicalAxis
= stpr_OR
   
Total Acres   2,313us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_OR
2,113us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_OR
  2,313us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_OR
% of Total Acres   28.80%land_PercentageOfAreaOfLand
/ us-gaap_StatementGeographicalAxis
= stpr_OR
35.20%land_PercentageOfAreaOfLand
/ us-gaap_StatementGeographicalAxis
= stpr_OR
   
Rental revenue   1,080,105us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_OR
123,138us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_OR
   
% of Total Rental Revenue   15.10%land_PercentageOfRentalRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_OR
3.00%land_PercentageOfRentalRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_OR
   
Florida [Member]          
Real Estate Properties [Line Items]          
Number of Farms   9land_NumberOfFarms
/ us-gaap_StatementGeographicalAxis
= stpr_FL
6land_NumberOfFarms
/ us-gaap_StatementGeographicalAxis
= stpr_FL
   
Total Acres   1,304us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_FL
402us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_FL
  1,304us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_FL
% of Total Acres   16.20%land_PercentageOfAreaOfLand
/ us-gaap_StatementGeographicalAxis
= stpr_FL
6.70%land_PercentageOfAreaOfLand
/ us-gaap_StatementGeographicalAxis
= stpr_FL
   
Rental revenue   759,398us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_FL
454,135us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_FL
   
% of Total Rental Revenue   10.60%land_PercentageOfRentalRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_FL
11.30%land_PercentageOfRentalRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_FL
   
Arizona [Member]          
Real Estate Properties [Line Items]          
Number of Farms   1land_NumberOfFarms
/ us-gaap_StatementGeographicalAxis
= stpr_AZ
1land_NumberOfFarms
/ us-gaap_StatementGeographicalAxis
= stpr_AZ
   
Total Acres   1,761us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_AZ
1,761us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_AZ
  1,761us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_AZ
% of Total Acres   21.90%land_PercentageOfAreaOfLand
/ us-gaap_StatementGeographicalAxis
= stpr_AZ
29.40%land_PercentageOfAreaOfLand
/ us-gaap_StatementGeographicalAxis
= stpr_AZ
   
Rental revenue   299,785us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_AZ
3,715us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_AZ
   
% of Total Rental Revenue   4.20%land_PercentageOfRentalRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_AZ
0.10%land_PercentageOfRentalRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_AZ
   
Michigan [Member]          
Real Estate Properties [Line Items]          
Number of Farms   4land_NumberOfFarms
/ us-gaap_StatementGeographicalAxis
= stpr_MI
4land_NumberOfFarms
/ us-gaap_StatementGeographicalAxis
= stpr_MI
   
Total Acres   270us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_MI
270us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_MI
  270us-gaap_AreaOfRealEstateProperty
/ us-gaap_StatementGeographicalAxis
= stpr_MI
% of Total Acres   3.40%land_PercentageOfAreaOfLand
/ us-gaap_StatementGeographicalAxis
= stpr_MI
4.50%land_PercentageOfAreaOfLand
/ us-gaap_StatementGeographicalAxis
= stpr_MI
   
Rental revenue   $ 252,451us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_MI
$ 84,679us-gaap_OperatingLeasesIncomeStatementLeaseRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_MI
   
% of Total Rental Revenue   3.50%land_PercentageOfRentalRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_MI
2.10%land_PercentageOfRentalRevenue
/ us-gaap_StatementGeographicalAxis
= stpr_MI