EQUITY INCENTIVE PLAN (Summary of Stock Option Activity) (Details) - Stock Options [Member] - $ / shares	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Number of Options
Outstanding at beginning of period (in shares)	236,484
Granted (in shares)	3,365,488	232,332
Forfeited (in shares)	(228,541)	(20,448)
Outstanding at end of period (in shares)	3,373,431	236,484
Exercisable at end of period (in shares)	356,019
Weighted-Average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 7.12
Granted (in dollars per share)	0.70	$ 1.85
Forfeited (in dollars per share)	2.00	69.39
Outstanding at end of period (in dollars per share)	1.06	$ 7.12
Exercisable at end of period (in dollars per share)	$ 3.64