Represents the period for which the entity is required to make interest only payments on the debt instrument.

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Represents the amount of legal obligation to fund an investment's operating deficits.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Period between issuance and maturity of long-term debt, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

The number of units in a real estate property owned as of the balance sheet date.

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No definition available.

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Total distributions to each class of partners (i.e., general, limited and preferred partners).

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (345 Franklin) (Details)		1 Months Ended	3 Months Ended
	Oct. 12, 2016 USD ($)	Jun. 30, 2013 USD ($)	Mar. 31, 2020 USD ($) property	Mar. 31, 2019 USD ($) property	Dec. 31, 2019 USD ($)	Dec. 20, 2019 USD ($)	Nov. 30, 2001 USD ($) item
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Investments in joint venture			$ 1,460,406	$ 1,801,702	$ 1,430,402
Number of units \| property				1,033
Repayment of loan	$ 5,158,000
Distribution to the Partnership			1,169,173	$ 1,177,353
Outstanding amount of mortgage			$ 284,905,564		$ 281,771,246
Maximum
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Mortgage amount						$ 35,000,000
Maximum \| Mortgages payable
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Interest rate (as a percent)			5.66%
345 Franklin \| Mortgages payable
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Outstanding amount of mortgage			$ 9,304,000
Residential buildings
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Number of units \| property				1,030
345 Franklin
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Investments in joint venture							$ 1,533,000
Ownership interest (as a percent)				50.00%			50.00%
Number of units			40	40			40
Distribution to the Partnership		$ 1,610,000
Legal obligation to fund operating results			$ 0
345 Franklin \| Mortgages payable
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Term of debt		15 years
Interest rate (as a percent)		3.87%
Period for which the entity is required to make interest only payments		3 years
Amortization period of debt		30 years
Repayment of loan		$ 6,776,000
Borrowings		$ 10,000,000
345 Franklin \| Residential buildings
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Number of units \| property			40	40