CHAPTER 11 FILING AND EMERGENCE FROM BANKRUPTCY (Schedule of Reorganization Items Net) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Trustee fees									$ 5	$ 100	$ 217
Professional fees									185	2,288	8,027
Litigation settlement, net								$ (20,359)	0	(20,359)	0
Litigation settlement due to class action plaintiffs									0	2,136	0
Provision for claims									0	4,824	0
Other claim adjustments									0	0	(192)
Reorganization Items, net	$ (8)	$ (46)	$ 9	$ 235	$ 393	$ 5,732	$ 860	$ (17,910)	190	(10,925)	8,052
Class B Warrant [Member]
Litigation settlement due to class action plaintiffs									$ 0	$ 86	$ 0