SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - RECLASSIFICATIONS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Agriculture and Other Income
Segment Reporting Information [Line Items]
Increase (decrease) in revenues	$ (335)	$ (59)
Increase (decrease) in cost of revenues	(96)	(167)
Real Estate Operations
Segment Reporting Information [Line Items]
Increase (decrease) in revenues	335	59
Increase (decrease) in cost of revenues	$ 96	$ 167