QUARTERLY INFORMATION (UNAUDITED) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Revenues	$ 925	$ 848	$ 996	$ 1,043	$ 902	$ 1,181	$ 1,695	$ 991	$ 1,240	$ 919	$ 937	$ 1,063
Cost of Sales	284	232	275	279	539	321	798	286	261	248	232	251
Operating expenses	3,226	2,955	2,995	3,028	2,921	2,813	2,660	2,641	2,797	2,793	2,667	2,706	$ 12,204	$ 11,035	$ 10,963
Loss from Operations	(2,585)	(2,339)	(2,274)	(2,264)	(2,558)	(1,953)	(1,763)	(1,936)	(1,818)	(2,122)	(1,962)	(1,894)
Interest expense (income), net	109	89	36	11	11	1	(2)	437	128	104	105	79	245	447	416
Other expense (income), net			(200)	(1)		(99)		(46)	(8)	(1)	(5)	(283)
Income tax expense (benefit)	11	3	4	3	10	3	6	3	10	3	12		21	22	25
Net income (loss)	$ (2,705)	$ (2,431)	$ (2,114)	$ (2,277)	$ (2,579)	$ (1,858)	$ (1,767)	$ (2,330)	$ (1,948)	$ (2,228)	$ (2,074)	$ (1,690)	$ (9,527)	$ (8,534)	$ (7,940)
Net income (loss) per share:
Net income (loss)	$ (.03)	$ (0.03)	$ (0.02)	$ (0.03)	$ (0.03)	$ (0.02)	$ (0.02)	$ (0.03)	$ (0.02)	$ (0.02)	$ (0.02)	$ (0.02)	$ (0.1)	$ (0.09)	$ (0.09)
Preferred dividends	(.00)	(0.00)	(0.01)	(0.00)	(0.00)	(0.00)	(0.00)	(0.00)	(0.00)	(0.00)	(0.00)	(0.00)	(0.02)	(0.01)
Basic income (loss) per share to common shareholders	$ (0.03)	$ (0.03)	$ (0.03)	$ (0.03)	$ (0.03)	$ (0.02)	$ (0.02)	$ (0.03)	$ (0.02)	$ (0.02)	$ (0.02)	$ (0.02)	$ (0.12)	$ (0.1)	$ (0.09)
Basic weighted-average shares outstanding	94,779,243	94,550,721	94,298,567	94,073,367	94,070,895	93,876,339	93,674,349	93,515,640	93,384,834	93,162,548	91,930,400	88,604,221	94,426,783	93,786,079	91,795,971