SHARE-BASED COMPENSATION AND OTHER COMPENSATION AGREEMENTS (Stock Option Plan Activity) (Details) - Stock Option [Member] - $ / shares shares in Thousands		3 Months Ended	12 Months Ended
		Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Number of Shares Outstanding [Roll Forward]
Beginning Balance, Outstanding Shares		382	502
Issued, Shares		31
Cancelled, Shares			(30)
Expired, Shares			(90)
Ending Balance, Outstanding Shares		413	382	502
Exercisable, Shares		382
Available for Grant, Shares	[1]	1,694
Weighted Average Exercise Price [Roll Forward]
Outstanding, Weighted Average Exercise Price ($ per Share)		$ 4.70	$ 4.78
Issued, Weighted Average Exercise Price ($ per Share)		2.46
Cancelled, Weighted Average Exercise Price ($ per Share)			5.40
Expired, Weighted Average Exercise Price ($ per share)			4.94
Outstanding, Weighted Average Exercise Price ($ per Share)		4.53	$ 4.70	$ 4.78
Exercisable, Weighted Average Exercise Price ($ per Share)		$ 4.70
Weighted Average Remaining Contractual Term
Outstanding, Weighted Average Remaining Contractual Term		1 year 5 months 12 days	1 year 4 months 28 days	2 years 25 days
Issued, Weighted Average Remaining Contractual Term		5 years
Exercisable, Weighted Average Remaining Contractual Term		1 year 1 month 28 days
Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding, Weighted Average Grant Date Fair Value ($ per Share)		$ 2.49	$ 2.57	$ 2.43
Issued, Weighted Average Grant Date Fair Value ($ per Share)		1.61
Cancelled, Weighted Average Grant Date Fair Value ($ per Share)			2.85
Expired, Weighted Average Grant Date Fair Value ($ per Share)			1.71
Outstanding, Weighted Average Grant Date Fair Value ($ per Share)		2.49	$ 2.57	$ 2.43
Exercisable, Weighted Average Grant Date Fair Value ($ per Share)		$ 2.57

[1] Securities available for grant include securities available for stock option grants and RSUs.