SHARE-BASED COMPENSATION AND OTHER COMPENSATION AGREEMENTS (Stock Option Plan Activity) (Details) - Stock Option [Member] - $ / shares shares in Thousands		6 Months Ended	12 Months Ended
		Jun. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Number of Shares Outstanding [Roll Forward]
Beginning Balance, Outstanding Shares		413	382
Issued, Shares		62	31
Expired, Shares		(322)
Ending Balance, Outstanding Shares		153	413	382
Exercisable, Shares		70
Available for Grant, Shares	[1]	1,796
Weighted Average Exercise Price [Roll Forward]
Outstanding, Weighted Average Exercise Price ($ per Share)		$ 4.53	$ 4.70
Issued, Weighted Average Exercise Price ($ per Share)		1.27	2.46
Expired, Weighted Average Exercise Price ($ per share)		4.57
Outstanding, Weighted Average Exercise Price ($ per Share)		3.13	$ 4.53	$ 4.70
Exercisable, Weighted Average Exercise Price ($ per Share)		$ 4.97
Weighted Average Remaining Contractual Term
Outstanding, Weighted Average Remaining Contractual Term		2 years 9 months 10 days	8 months 12 days	1 year 4 months 28 days
Issued, Weighted Average Remaining Contractual Term		4 years 8 months 15 days	4 years 2 months 26 days
Exercisable, Weighted Average Remaining Contractual Term		9 months 18 days
Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding, Weighted Average Grant Date Fair Value ($ per Share)		$ 2.49	$ 2.57
Issued, Weighted Average Grant Date Fair Value ($ per Share)		0.80	1.61
Expired, Weighted Average Grant Date Fair Value ($ per Share)		2.51
Outstanding, Weighted Average Grant Date Fair Value ($ per Share)		1.77	$ 2.49	$ 2.57
Exercisable, Weighted Average Grant Date Fair Value ($ per Share)		$ 2.66

[1] Securities available for grant include securities available for stock option grants and RSUs. In accordance with the terms of the LTIP, the last date upon which the Committee could grant new awards was July 1, 2019, the ten-year anniversary of the effective date of the LTIP.