SHAREHOLDERS' EQUITY Narrative (Details)	Sep. 30, 2017	Dec. 31, 2016
Empire [Member]
Noncontrolling Interest, Ownership Percentage by Parent	100.00%	79.00%
Tilden [Member]
Noncontrolling Interest, Ownership Percentage by Parent	100.00%	85.00%

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

No definition available.

Name:	us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant