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Borrowings - Summary of Mortgage Note Payable and Line of Credit (Detail) - USD ($) | 6 Months Ended |  |
--- | --- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014 | May. 09, 2014
Debt Instrument [Line Items] |  |  |
Principal Outstanding | $ 110,461,166 | $ 86,417,361 |
Undrawn Commitment | 107,655,002 | 125,993,002 |
MetLife [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Undrawn Commitment | $ 55,900,000 |  |
MetLife [Member] | Mortgage Note Payable [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Issuer | MetLife |  |
Date(s) of Issuance | May 09, 2014 |  |
Initial Commitment | $ 100,000,000 |  | $ 100.0
Maturity Date | Jan. 05, 2029 |  |
Principal Outstanding | $ 66,331,998 | $ 66,331,998 |
Stated Interest Rate | 3.61% | 3.61% |
Undrawn Commitment | $ 33,668,002 | $ 33,668,002 |
MetLife [Member] | Line of Credit [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Issuer | MetLife |  |
Date(s) of Issuance | May 09, 2014 |  |
Initial Commitment | $ 25,000,000 |  | $ 25.0
Maturity Date | Apr. 05, 2024 |  |
Principal Outstanding | $ 2,800,000 | $ 4,000,000 |
Stated Interest Rate | 2.77% | 2.75% |
Undrawn Commitment | $ 22,200,000 | $ 21,000,000 |
Farm Credit Loan Maturing in May 2030 [Member] | Mortgage Notes Payable [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Issuer | Farm Credit |  |
Dates of Issuance, Start | Sep. 19, 2014 |  |
Dates of Issuance, End | May 08, 2015 |  |
Initial Commitment | $ 18,425,880 |  |
Maturity Date, Start | May 01, 2020 |  |
Maturity Date, End | Aug. 01, 2034 |  |
Principal Outstanding | $ 18,116,168 | $ 12,410,363 |
Stated Interest Rate | 3.38% | 3.53% |
Farmer Mac [Member] | Bond Payable [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Issuer | Farmer Mac |  |
Date(s) of Issuance | Dec. 11, 2014 |  |
Initial Commitment | $ 75,000,000 |  |
Maturity Date, Start | Jul. 30, 2018 |  |
Maturity Date, End | Jan. 06, 2020 |  |
Principal Outstanding | $ 23,213,000 | $ 3,675,000 |
Stated Interest Rate | 2.99% | 3.25% |
Undrawn Commitment | $ 51,787,000 | $ 71,325,000 |

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