STOCKHOLDER RIGHTS PLAN (Details) - USD ($)	Oct. 15, 2018	Mar. 31, 2019	Dec. 31, 2018
Subsequent Event [Line Items]
Number of right (in shares)	1
Number of securities called by each warrant or right (in shares)	0.01
Common stock, par value (dollars per share)		$ 0.001	$ 0.001
Preferred stock to common stock conversion, treatment	1
Number of days after public announcement of acquiring person	10 days
Number of days after tender or exchange offer is completed by acquiring person	10 days
Option to exercise, market value multiplier of purchase price	2
Redemption price per share	$ 0.001
Right to share conversion	1
Adjustments to purchase price of less than 1 percent	$ 0
Series B Junior Preferred Stock
Subsequent Event [Line Items]
Number of securities called by each warrant or right (in shares)	0.01
Common stock, par value (dollars per share)	$ 3.50
Minimum
Subsequent Event [Line Items]
Ownership percentage, more than, penalty imposed	4.99%
Percentage of common stock owned by acquiring person	50.00%