MORTGAGE INVESTMENTS, LOAN PARTICIPATIONS AND LOAN SALES (Details 8) $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) Loan	Dec. 31, 2015 USD ($) Loan	Dec. 31, 2014 USD ($)
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans On Real Estate Principal Amount	$ 13,060	$ 24,039
Valuation Allowance	(12,682)	(12,892)	$ (15,562)
Net Carrying Value	$ 378	$ 11,147	$ 24,539
Total Loan Percentage (in percentage)	100.00%	100.00%
Total Number Of Loans (in loans) | Loan	3	6
Pre Entitled Land [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans On Real Estate Principal Amount	$ 378	$ 8,209
Total Loan Percentage (in percentage)	2.90%	34.10%
Total Number Of Loans (in loans) | Loan	1	3
Pre Entitled Land [Member] | Processing Entitlements [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans On Real Estate Principal Amount	$ 378	$ 8,209
Total Loan Percentage (in percentage)	2.90%	34.10%
Total Number Of Loans (in loans) | Loan	1	3
Entitled Land [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans On Real Estate Principal Amount	$ 12,682	$ 15,830
Total Loan Percentage (in percentage)	97.10%	65.90%
Total Number Of Loans (in loans) | Loan	2	3
Entitled Land [Member] | Held For Investment [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans On Real Estate Principal Amount	$ 12,682	$ 15,830
Total Loan Percentage (in percentage)	97.10%	65.90%
Total Number Of Loans (in loans) | Loan	2	3