FAIR VALUE OF FINANCIAL INSTRUMENTS, Quantitative Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	207	207
Market Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	477	1,215
Fair Value from Previously Negotiated Note Sales [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Assets, Fair Value Disclosure	5,500	5,500
Minimum [Member] | Market Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	7.30%	7.30%
Fair Value Inputs Reduction Planned Expedited Disposal	10.00%	10.00%
Fair Value Inputs Reduction Sales Comparison Value	0.00%	0.00%
Maximum [Member] | Market Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	7.50%	7.50%
Fair Value Inputs Reduction Planned Expedited Disposal	25.00%	25.00%
Fair Value Inputs Reduction Sales Comparison Value	6.00%	6.00%
Weighted Average [Member] | Income Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	7.50%	7.50%
Weighted Average [Member] | Market Approach Valuation Technique [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs, Cap Rate	7.40%	7.40%
Fair Value Inputs Reduction Planned Expedited Disposal	15.60%	15.60%
Fair Value Inputs Reduction Sales Comparison Value	3.80%	3.80%
Weighted Average [Member] | Fair Value from Previously Negotiated Note Sales [Member]
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Fair Value Inputs Reduction Planned Expedited Disposal	17.00%	17.00%