NOTES PAYABLE, NET NOTES PAYABLE, NET (Interest Expense) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2017	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Interest Expense		$ 887	$ 1,824
Amortization of Debt Issuance Costs	$ 100	600	500
Interest Costs Capitalized		3,500	3,400
Interest Payable		200	300
Variable Interest Entity, Primary Beneficiary [Member]
Debt Instrument [Line Items]
Amortization of Debt Issuance Costs		300	500
Interest Costs Capitalized	$ 800	3,500	3,400
Interest Payable		$ 100	$ 200