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TAXABLE INCOME AND TAX BASIS (Details) (USD $) | 12 Months Ended | 0 Months Ended | 3 Months Ended
--- | --- | --- | ---
Dec. 31, 2012 | May 29, 2013 Nashoba Apartments in Acton, Massachusetts | Jun. 30, 2013 Nashoba Apartments in Acton, Massachusetts
TAXABLE INCOME AND TAX BASIS |  |  |
Excess amount of taxable income over statement income | $ 530,000 |  |
Excess amount of cumulative statement basis over cumulative taxable basis | 12,000,000 |  |
Excess amount of statement income from joint venture investments over taxable income | 1,700,000 |  |
TAXABLE INCOME AND TAX BASIS |  |  |
Sales price of real estate properties |  | 4,300,000 | 4,300,000
Gain on sale of property |  | $ 3,679,000 |

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2941-110230 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=8077374&loc=d3e2443-110228 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 37, 41, 42, 43, 45 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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