RIGHTS AGREEMENT (Details) - shares		9 Months Ended
Mar. 08, 2016	Sep. 30, 2018
RIGHTS AGREEMENT [Abstract]
Preferred stock dividend declared for each common stock (in shares)	1
Number of business days following public announcement		10 days
Minimum combined ownership of outstanding shares of common stock by acquiring person		20.00%

Number of shares of preferred stock issued as dividends during the period. Excludes stock splits.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

Name:	us-gaap_PreferredStockDividendsShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration