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Real Estate and Intangible Assets - Summary of Geographic Locations of Properties (Detail) |  | 3 Months Ended
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Mar. 31, 2016 a Farm | Mar. 31, 2016 USD ($) a Farm | Mar. 31, 2015 USD ($) a Farm
Real Estate Properties [Line Items] |  |  |
Number of Farms | Farm | 46 | 46 | 34
Total Acres | a | 23,003 | 23,003 | 8,789
% of Total Acres |  | 100.00% | 100.00%
Rental revenue | $ |  | $ 3,679,474 | $ 2,622,327
% of Total Rental Revenue |  | 100.00% | 100.00%
California [Member] |  |  |
Real Estate Properties [Line Items] |  |  |
Number of Farms | Farm | 18 | 18 | 15
Total Acres | a | 3,576 | 3,576 | 2,722
% of Total Acres | 15.60% | 15.60% | 31.00%
Rental revenue | $ |  | $ 2,140,166 | $ 1,839,707
% of Total Rental Revenue |  | 58.20% | 70.20%
Florida [Member] |  |  |
Real Estate Properties [Line Items] |  |  |
Number of Farms | Farm | 13 | 13 | 10
Total Acres | a | 5,094 | 5,094 | 1,723
% of Total Acres | 22.10% | 22.10% | 19.60%
Rental revenue | $ |  | $ 743,087 | $ 349,488
% of Total Rental Revenue |  | 20.20% | 13.30%
Oregon [Member] |  |  |
Real Estate Properties [Line Items] |  |  |
Number of Farms | Farm |  | 4 | 4
Total Acres | a | 2,313 | 2,313 | 2,313
% of Total Acres |  | 10.10% | 26.30%
Rental revenue | $ |  | $ 292,481 | $ 291,537
% of Total Rental Revenue |  | 7.90% | 11.10%
Arizona [Member] |  |  |
Real Estate Properties [Line Items] |  |  |
Number of Farms | Farm |  | 2 | 1
Total Acres | a | 3,000 | 3,000 | 1,761
% of Total Acres |  | 13.00% | 20.00%
Rental revenue | $ |  | $ 172,461 | $ 79,916
% of Total Rental Revenue |  | 4.70% | 3.00%
Nebraska [Member] |  |  |
Real Estate Properties [Line Items] |  |  |
Number of Farms | Farm |  | 2 |
Total Acres | a | 2,559 | 2,559 |
% of Total Acres |  | 11.10% | 0.00%
Rental revenue | $ |  | $ 144,907 |
% of Total Rental Revenue |  | 3.90% | 0.00%
Colorado [Member] |  |  |
Real Estate Properties [Line Items] |  |  |
Number of Farms | Farm |  | 3 |
Total Acres | a | 6,191 | 6,191 |
% of Total Acres |  | 26.90% | 0.00%
Rental revenue | $ |  | $ 124,000 |
% of Total Rental Revenue |  | 3.40% | 0.00%
Michigan [Member] |  |  |
Real Estate Properties [Line Items] |  |  |
Number of Farms | Farm |  | 4 | 4
Total Acres | a | 270 | 270 | 270
% of Total Acres |  | 1.20% | 3.10%
Rental revenue | $ |  | $ 62,372 | $ 61,679
% of Total Rental Revenue |  | 1.70% | 2.40%

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