Represents the amount of difference between the fair value and carrying value.

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Represents the weighted average remaining term of the mortgages based on which the market interest rate is assumed.

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Represents the number of shares sold to the related party.

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Represents the period based on which average of the closing prices is considered for determining proceeds for shares sold to the related party.

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This item represents the cost of equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments for other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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No definition available.

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Amount of equity securities categorized neither as held-to-maturity nor as trading.

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This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Additionally, this item would include any losses recognized for other than temporary impairments (OTTI) of the subject investments in debt and equity securities.

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This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

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Balance held at close of period in number of shares.

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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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Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

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FAIR VALUE MEASUREMENTS (Details) (USD $)	12 Months Ended
FAIR VALUE MEASUREMENTS (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Fair Value of Financial Instruments
Carrying amount	$ 13,250,000us-gaap_LineOfCredit	$ 23,250,000us-gaap_LineOfCredit
Available-for-sale securities:
Equity securities	29,000
Available-for-sale securities
Aggregate cost of available-for-sale securities	5,300	138,000
Unrealized gain on available-for-sale securities	24,000	144,000
Gross proceeds of available-for-sale securities	266,000	19,000	373,000
Net realized gain on available-for-sale securities	134,000	6,000	9,000
Gain on sale shares sold to related party	134,000	6,000	9,000
Facility
Fair Value of Financial Instruments
Carrying amount	13,250,000	23,250,000
Carrying and fair Value
Available-for-sale securities:
Equity securities	29,000	282,000
Carrying and fair Value \| Interest rate swap
Available-for-sale securities:
Derivative financial instruments	27,000	265,000
Financial liabilities:
Derivative financial instruments	3,139,000	774,000
Level 1
Available-for-sale securities:
Equity securities	29,000	282,000
Level 2 \| Interest rate swap
Available-for-sale securities:
Derivative financial instruments	27,000	265,000
Financial liabilities:
Derivative financial instruments	3,139,000	774,000
BRT Realty Trust
Available-for-sale securities:
Equity securities		262,000
Available-for-sale securities
Investment in available-for-sale equity securities (in shares)		37,081
BRT Realty Trust \| Gould
Available-for-sale securities
Gross proceeds of available-for-sale securities	266,000
Number of shares sold to related party	37,081
Period based on which average of the closing prices considered for proceeds from related party	30 days
Cost of shares sold to related party	132,000
Gain on sale shares sold to related party	134,000
Gain reclassified from accumulated other comprehensive loss on the balance sheet into earnings	132,000
Other equity securities
Available-for-sale securities:
Equity securities		20,000
Mortgages payable
Fair Value of Financial Instruments
Estimated fair value of mortgages payable	300,541,000	283,142,000
Excess of fair value over carrying value	$ 8,492,000	$ 5,097,000
Blended or estimated market interest rate (as a percent)	4.50%	5.00%
Weighted average remaining term of the mortgages		9 years
Mortgages and loan payable
Fair Value of Financial Instruments
Weighted average remaining term of the mortgages	9 years 1 month 6 days