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MORTGAGE NOTES PAYABLE AND LINE OF CREDIT (Details) |  |  |  | 1 Months Ended | 9 Months Ended
--- | --- | --- | --- | --- | ---
Jul. 31, 2014 USD ($) item | Jul. 11, 2014 USD ($) | Jun. 11, 2014 USD ($) | Feb. 28, 2014 USD ($) | Sep. 30, 2015 USD ($) shares | Sep. 30, 2014 shares
Annual maturities of mortgage debt |  |  |  |  |  |
2015-current maturities |  |  |  |  | $ 726,000 |
2016 |  |  |  |  | 1,821,000 |
2017 |  |  |  |  | 7,840,000 |
2018 |  |  |  |  | 1,921,000 |
2019 |  |  |  |  | 4,337,000 |
Thereafter |  |  |  |  | 179,328,000 |
Total |  |  |  |  | 195,973,000 |
Long-term Debt, Maturities, Repayments of Principal in Next Rolling Twelve Months |  |  |  |  | 726,000 |
Additional disclosures related to mortgages |  |  |  |  |  |
Repurchase of depository receipts |  |  |  |  | $ 2,018,329 |
Repurchase of units | shares |  |  |  |  | 1,677 | 1,080
Commitment fee for unused line of credit |  |  |  |  | $ 36,000 |
Line of Credit |  |  |  |  |  |
MORTGAGE NOTES PAYABLE |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 3.875% |
Additional disclosures related to mortgages |  |  |  |  |  |
Term of debt | 3 years |  |  |  |  |
Maximum borrowings | $ 25,000,000 |  |  |  |  |
Funds drawn by the company |  |  |  |  | $ 25,000,000 |
Number of properties in which borrowing amount collateralized | item | 23 |  |  |  |  |
Amount of refinancing costs | $ 125,000 |  |  |  |  |
Base Rate [Member] | Line of Credit |  |  |  |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Reference rate used in calculation of Base Rate | base |  |  |  |  |
Prime Rate [Member] | Line of Credit |  |  |  |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Reference rate used in calculation of Base Rate | Prime |  |  |  |  |
Federal Funds Rate [Member] | Line of Credit |  |  |  |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Basis of effective interest rate used in calculation of Base Rate (as a percent) | 0.50% |  |  |  |  |
Reference rate used in calculation of Base Rate | Federal Funds |  |  |  |  |
London Interbank Offered Rate | Line of Credit |  |  |  |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Basis of effective interest rate used in calculation of Base Rate (as a percent) | 1.00% |  |  |  |  |
Reference rate used in calculation of Base Rate | one month LIBOR |  |  |  |  |
Minimum |  |  |  |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Tangible net worth |  |  |  |  | $ 150,000,000 |
Ratio of net operating income to total indebtedness |  |  |  |  | 9.50% |
Debt service coverage ratio |  |  |  |  | 1.6 |
Minimum | Line of Credit |  |  |  |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Commitment fee for unused amount (as a percent) | 0.15% |  |  |  |  |
Pledged interests rate of the Partnership's ownership interest (as a percent) | 49.00% |  |  |  |  |
Minimum | Base Rate [Member] | Line of Credit |  |  |  |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Margin over basis of interest rate (as a percent) | 2.50% |  |  |  |  |
Maximum |  |  |  |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Leverage ratio |  |  |  |  | 65.00% |
Aggregate increase in indebtedness |  |  |  |  | $ 15,000,000 |
Maximum | Line of Credit |  |  |  |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Commitment fee for unused amount (as a percent) | 0.20% |  |  |  |  |
Pledged interests rate of the Partnership's ownership interest (as a percent) | 100.00% |  |  |  |  |
Mortgages payable |  |  |  |  |  |
MORTGAGE NOTES PAYABLE |  |  |  |  |  |
Amount of monthly installments including principal |  |  |  |  | $ 808,000 |
Weighted average interest rate (as a percent) |  |  |  |  | 4.81% |
Effective interest rate (as a percent) |  |  |  |  | 4.92% |
Additional disclosures related to mortgages |  |  |  |  |  |
Mortgage prepayment penalties |  |  |  | $ 0 |  |
Mortgages payable | NERA Dean Street Associates, LLC |  |  |  |  |  |
MORTGAGE NOTES PAYABLE |  |  |  |  |  |
Interest rate (as a percent) |  |  | 4.22% |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Amount of new loan |  |  | $ 5,687,000 |  |  |
Period of interest only payments on loans |  |  | 10 years |  |  |
Amount of loan proceeds utilized for pay off the existing mortgage |  |  | $ 5,077,000 |  |  |
Refinancing cost |  |  | $ 89,000 |  |  |
Mortgages payable | Hamilton Linewt LLC Commercial-1031Exchange Newton, Massachusetts |  |  |  |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Amount of mortgage paid off |  |  |  | 1,466,000 |  |
Mortgages payable | Linhart L.P. Residential/Commercial Newton, Massachusetts |  |  |  |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Amount of mortgage paid off |  |  |  | $ 1,926,000 |  |
Mortgages payable | Courtyard At Westgate Residential Units Burlington Massachusetts Member |  |  |  |  |  |
MORTGAGE NOTES PAYABLE |  |  |  |  |  |
Interest rate (as a percent) |  | 4.31% |  |  |  |
Additional disclosures related to mortgages |  |  |  |  |  |
Period of interest only payments on loans |  | 10 years |  |  |  |
Amount of loan proceeds utilized for pay off the existing mortgage |  | $ 2,010,000 |  |  |  |
Amount of new loan |  | 2,500,000 |  |  |  |
Amount of refinancing costs |  | $ 75,000 |  |  |  |
Mortgages payable | Minimum |  |  |  |  |  |
MORTGAGE NOTES PAYABLE |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 3.76% |
Mortgages payable | Maximum |  |  |  |  |  |
MORTGAGE NOTES PAYABLE |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 5.97% |

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