ORGANIZATION AND DESCRIPTION OF BUSINESS (Liquidity and Capital Resources) (Details) - USD ($) shares in Thousands	1 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Class of Stock [Line Items]
Accumulated deficit	$ 59,500,000	$ 59,500,000		$ 46,159,000
Existing cash balances and investments	13,500,000	13,500,000
Net proceeds from the sale of common stock from private placement offering		15,025,000	$ 5,177,000
Cash used per quarter		11,300,000
Shelf registration statement, public offerings, maximum aggregate proceeds	35,000,000.0	35,000,000.0
Net proceeds from units issued in the period	7,500,000	15,025,000
Capital Units
Class of Stock [Line Items]
Net proceeds from units issued in the period		$ 11,500,000
New shares issued		2,715
Value of capital shares reserve for future issuance	$ 23,500,000	$ 23,500,000