MORTGAGE NOTES PAYABLE - Summary of mortgage note payables (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Total mortgage notes receivable	$ 846,574
Less current portion of mortgage notes payable	(21,745)	(20,641)
Long-term portion of mortgage notes payable	824,829	830,189
Mortgage Notes Payable
Debt Instrument [Line Items]
Total mortgage notes receivable	846,574	850,830
Less current portion of mortgage notes payable	21,745	20,641
Long-term portion of mortgage notes payable	824,829	830,189
Mortgage Notes Payable | Note to credit union 6% due May 2014
Debt Instrument [Line Items]
Total mortgage notes receivable	232,442	234,569
Mortgage Notes Payable | Note to finance company 6.63% due November 2034
Debt Instrument [Line Items]
Total mortgage notes receivable	89,825	89,825
Mortgage Notes Payable | Note to finance company 9.75% due August 2020
Debt Instrument [Line Items]
Total mortgage notes receivable	22,503	22,572
Mortgage Notes Payable | Note to bank 6.75% due November 2035
Debt Instrument [Line Items]
Total mortgage notes receivable	93,597	93,597
Mortgage Notes Payable | Note to finance company 11.5% due November 2020
Debt Instrument [Line Items]
Total mortgage notes receivable	23,951	24,006
Mortgage Notes Payable | Note to finance company 7.38% due November 2035
Debt Instrument [Line Items]
Total mortgage notes receivable	86,845	87,003
Mortgage Notes Payable | Note to finance company 10% due November 2035
Debt Instrument [Line Items]
Total mortgage notes receivable	16,972	17,021
Mortgage Notes Payable | Note to finance company 7.38% due November 2035
Debt Instrument [Line Items]
Total mortgage notes receivable	84,975	85,128
Mortgage Notes Payable | Note to finance company 10% due November 2035 (one)
Debt Instrument [Line Items]
Total mortgage notes receivable	16,404	16,459
Mortgage Notes Payable | Note to credit union 5% due April 2026
Debt Instrument [Line Items]
Total mortgage notes receivable	$ 179,060	$ 180,650