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Real Estate and Intangible Assets - Summary Information of Farms Additional Information (Detail) |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Feb. 08, 2016 | Sep. 30, 2016 USD ($) | Sep. 30, 2015 USD ($) | Sep. 30, 2016 USD ($) Lease shares | Sep. 30, 2015 USD ($) | Dec. 31, 2015 USD ($)
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Unamortized deferred financing costs |  |  |  |  |  |  | $ 0
Offering costs |  |  |  |  | $ 241,845 | $ 1,027,986 |
Credits to fees from Adviser | [1] |  | $ 0 | $ 0 | 0 | 320,905 |
2016 New Real Estate Activity [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Direct leasing costs in connection with acquisitions |  |  | 128,161 |  | $ 229,476 |  |
2015 New Real Estate Activity [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Direct leasing costs in connection with acquisitions |  |  |  | $ 75,293 |  | 413,374 |
Business Acquisition, Transaction Costs |  |  |  |  |  | $ 11,825 |
McIntosh Road [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Lease Expiration Date |  | Jun. 30, 2019 |  |  |  |  |
McIntosh Road [Member] | Dover, FL [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Number of leases | Lease |  |  |  |  | 2 |  |
Lease Expiration Date |  |  |  |  | Jun. 30, 2017 |  |
McIntosh Road [Member] | Lease One [Member] | Dover, FL [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Lease Expiration Date |  |  |  |  | Jun. 30, 2017 |  |
McIntosh Road [Member] | Lease Two [Member] | Dover, FL [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Lease Expiration Date |  |  |  |  | Jun. 30, 2019 |  |
Gunbarrel Road [Member] | Alamosa CO [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Lease Expiration Date |  |  |  |  | Feb. 28, 2021 |  |
Gunbarrel Road [Member] | Alamosa CO [Member] | 2016 New Real Estate Activity [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Units issued as partial consideration of acquisition | shares |  |  |  |  | 745,879 |  |
Fair value of units issued as partial consideration of acquisition |  |  | 6,500,000 |  | $ 6,500,000 |  |
Offering costs |  |  |  |  | $ 25,500 |  |
Baca County [Member] | Edler, CO [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Lease Expiration Date |  |  |  |  | Dec. 31, 2020 |  |
Baca County [Member] | Edler, CO [Member] | 2016 New Real Estate Activity [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Units issued as partial consideration of acquisition | shares |  |  |  |  | 125,677 |  |
Fair value of units issued as partial consideration of acquisition |  |  | 1,500,000 |  | $ 1,500,000 |  |
Offering costs |  |  |  |  | $ 8,235 |  |
Nevada Ranch [Member] | Merced, CA [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Lease Expiration Date |  |  |  |  | Nov. 15, 2019 |  |
Nevada Ranch [Member] | Merced, CA [Member] | 2016 New Real Estate Activity [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Units issued as partial consideration of acquisition | shares |  |  |  |  | 343,750 |  |
Fair value of units issued as partial consideration of acquisition |  |  | 3,900,000 |  | $ 3,900,000 |  |
Offering costs |  |  |  |  | $ 21,732 |  |
Espinosa Road [Member] | Salinas, CA [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Lease Expiration Date |  |  |  |  | Oct. 31, 2020 |  |
New Tenant Lease Agreement [Member] | 2016 New Real Estate Activity [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Direct leasing costs in connection with acquisitions |  |  |  |  | $ 9,520 |  |
Long-Term Mortgage Notes and Bonds Payable [Member] |  |  |  |  |  |  |
Real Estate Properties [Line Items] |  |  |  |  |  |  |
Unamortized deferred financing costs |  |  | $ 1,100,000 |  | $ 1,100,000 |  | $ 1,100,000
[1] | Refer to Note 6, “Related-Party Transactions,” for additional information.

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