STOCK-BASED COMPENSATION - Director Compensation Program (Details) - RSUs - Non-employee director	1 Months Ended
	Oct. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Dec. 31, 2016 Installment
Stock-based compensation
One time grant of shares, value	$ 125,000	$ 250,000
Pro rata shares grant, value	225,000	250,000
Number of annual installments | Installment			2
Annual grant of shares, value	$ 225,000	$ 250,000