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Represents the period of notice to be served in order to demand earlier payment of debt in whole or in part.

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Represents the useful life of constituents of rental properties.

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

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Represents the aggregate sales price of real estate properties sold by the entity.

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Increase of additional borrowings on existing and new debt instruments.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Interest rate stated in the contractual debt agreement.

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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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The gains (losses) included in results of operations resulting from the sale or disposal of property, plant and equipment, which do not qualify for treatment as discontinued operations. This item does not include any gain (loss) recognized on the sale of oil and gas property or timber property.

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The amount of cash paid for interest during the period.

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The number of real estate properties owned as of the balance sheet date.

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

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Cash received for the sale of real estate that is not part of an investing activity during the current period.

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The cumulative amount of depreciation for real estate property held for investment purposes.

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Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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RENTAL PROPERTIES (Details) (USD $)	9 Months Ended				1 Months Ended							1 Months Ended							9 Months Ended				9 Months Ended				9 Months Ended				9 Months Ended				9 Months Ended				9 Months Ended				9 Months Ended				9 Months Ended						9 Months Ended				9 Months Ended				9 Months Ended
RENTAL PROPERTIES (Details) (USD $)	Sep. 30, 2012 item	Sep. 30, 2011	Dec. 31, 2011	Sep. 30, 2012 Mortgages payable	May 31, 2011 Avon Street Apartments	Jun. 30, 2011 Battle Green Apartments	Jul. 31, 2011 Battle Green Apartments Mortgages payable	Sep. 30, 2012 Battle Green Apartments Mortgages payable	Jul. 27, 2011 Battle Green Apartments Mortgages payable	Sep. 30, 2012 Minimum Mortgages payable	Sep. 30, 2012 Maximum Mortgages payable	Jul. 31, 2011 Harold Brown Battle Green Apartments Mortgages payable	Jun. 30, 2011 Harold Brown Battle Green Apartments Mortgages payable	Jun. 02, 2011 Harold Brown Battle Green Apartments Mortgages payable	Sep. 30, 2012 Harold Brown Minimum	Sep. 30, 2012 Harold Brown Maximum	Sep. 30, 2012 Land, improvements and parking lots	Dec. 31, 2011 Land, improvements and parking lots	Sep. 30, 2012 Land, improvements and parking lots Minimum	Sep. 30, 2012 Land, improvements and parking lots Maximum	Sep. 30, 2012 Buildings and improvements	Dec. 31, 2011 Buildings and improvements	Sep. 30, 2012 Buildings and improvements Minimum	Sep. 30, 2012 Buildings and improvements Maximum	Sep. 30, 2012 Kitchen cabinets	Dec. 31, 2011 Kitchen cabinets	Sep. 30, 2012 Kitchen cabinets Minimum	Sep. 30, 2012 Kitchen cabinets Maximum	Sep. 30, 2012 Carpets	Dec. 31, 2011 Carpets	Sep. 30, 2012 Carpets Minimum	Sep. 30, 2012 Carpets Maximum	Sep. 30, 2012 Air conditioning	Dec. 31, 2011 Air conditioning	Sep. 30, 2012 Air conditioning Minimum	Sep. 30, 2012 Air conditioning Maximum	Sep. 30, 2012 Laundry equipment	Dec. 31, 2011 Laundry equipment	Sep. 30, 2012 Laundry equipment Minimum	Sep. 30, 2012 Laundry equipment Maximum	Sep. 30, 2012 Elevators	Dec. 31, 2011 Elevators	Sep. 30, 2012 Swimming pools	Dec. 31, 2011 Swimming pools	Sep. 30, 2012 Equipment	Dec. 31, 2011 Equipment	Sep. 30, 2012 Equipment Minimum	Sep. 30, 2012 Equipment Maximum	Sep. 30, 2012 Motor vehicles	Dec. 31, 2011 Motor vehicles	Sep. 30, 2012 Fences	Dec. 31, 2011 Fences	Sep. 30, 2012 Fences Minimum	Sep. 30, 2012 Fences Maximum	Sep. 30, 2012 Furniture and fixtures	Dec. 31, 2011 Furniture and fixtures	Sep. 30, 2012 Furniture and fixtures Minimum	Sep. 30, 2012 Furniture and fixtures Maximum	Sep. 30, 2012 Smoke alarms	Dec. 31, 2011 Smoke alarms	Sep. 30, 2012 Smoke alarms Minimum	Sep. 30, 2012 Smoke alarms Maximum	May 18, 2011 Residential buildings Avon Street Apartments item	Jun. 02, 2011 Residential buildings Battle Green Apartments item	Sep. 30, 2012 Residential and mixed-use properties item	Sep. 30, 2012 Residential and mixed-use properties Partially owned properties item	Sep. 30, 2012 Residential and mixed-use properties Partially owned properties Minimum	Sep. 30, 2012 Residential and mixed-use properties Partially owned properties Maximum	Sep. 30, 2012 Condominium item
RENTAL PROPERTIES
Number of units	120																																																														66	48	2,251	799			19
Number of properties																																																																	20	9			1
Percentage of ownership interest															43.20%	57.00%																																																			40.00%	50.00%
Rental properties
Total fixed assets	$ 160,764,301		$ 159,123,799
Less: Accumulated depreciation	(64,626,683)		(60,199,265)
Total fixed assets, net	96,137,618		98,924,534														27,781,268	27,614,537			119,318,092	119,097,186			3,990,449	3,542,249			3,847,902	3,307,499			830,218	788,146			375,167	368,955			1,139,296	1,139,296	235,242	235,242	1,812,027	1,744,006			107,788	107,788	26,874	22,974			1,095,562	1,039,439			204,416	116,482
Useful Life																			15 years	40 years			15 years	40 years			5 years	10 years			5 years	10 years			7 years	10 years			5 years	7 years	20 years		10 years				5 years	7 years	5 years				5 years	10 years			5 years	7 years			5 years	7 years
Sales price of real estate properties					8,750,000
Gain on sale of property					7,700,000
Net proceeds from sale of property		8,297,928			5,444,000
Purchase price of real estate properties						10,000,000
Borrowings							5,000,000						3,998,573
Interest rate (as a percent)								4.95%		4.25%	7.07%			6.00%
Term of debt													4 years
Notice period demanding early payment													6 months
Amortization period of debt							30 years
Deferred financing cost associated with mortgage									100,000
Effective interest rate (as a percent)				5.62%				5.07%
Interest paid	$ 5,854,000	$ 6,008,000										$ 38,123