RENTAL PROPERTIES (Mill Street) (Details)	Dec. 20, 2019 USD ($) item
Maximum
RENTAL PROPERTIES
Loan amount	$ 35,000,000
Mill Street Gardens Residential Apartments Woburn Massachusetts
RENTAL PROPERTIES
Number of units \| item	181
Purchase price of real estate properties	$ 59,550,000
Closing costs associated with financing	237,000
Line of credit	18,000,000
Cash from reserves	10,550,000
Loan amount	31,000,000
Purchase price allocated to the value of the in-place leases	1,282,000
Purchase price allocated to the value of the tenant relationships	$ 136,000
Amortization period of value of the in-place leases	12 months
Amortization period of value of the tenant relationships	36 months
Mill Street Gardens Residential Apartments Woburn Massachusetts \| Initial Advance
RENTAL PROPERTIES
Loan amount	$ 31,000,000
Interest rate (as a percent)	3.586%
Mill Street Gardens Residential Apartments Woburn Massachusetts \| Subsequent Advance
RENTAL PROPERTIES
Loan amount	$ 4,000,000
Interest rate (as a percent)	3.50%

Represents the closing costs associated with the financing.

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Represents the amortization period of value of the in-place leases.

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Represents the aggregate purchase price of real estate properties acquired by the entity.

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Represents the aggregate purchase price of real estate properties acquired by the entity allocated to leases.

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Represents the aggregate purchase price of real estate properties acquired by the entity allocated to tenant relationships.

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Represents the amortization period of value of the tenant relationships.

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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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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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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

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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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