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SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)
6 Months Ended 12 Months Ended 0 Months Ended
Jun. 30, 2013
item
Dec. 31, 2012
Dec. 19, 2012
2015 Convertible Notes
Loans Held for Investment      
Impairments of loan held for investment $ 0 $ 0  
Convertible Senior Notes      
Aggregate principal amount     $ 69,000,000
Interest rate (as a percent)     7.00%
Income Taxes      
Period of disqualification of REIT status 4 years    
Segment Reporting      
Number of operating business segments 1