Real Estate and Intangible Assets - Summary of Geographic Locations of Properties (Detail)		3 Months Ended
	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%