STOCKHOLDERS' EQUITY (Details) (USD $)	1 Months Ended	3 Months Ended	6 Months Ended
May 31, 2012	Jan. 31, 2012	Jun. 30, 2012	Jun. 30, 2012
STOCKHOLDERS' EQUITY
Number of preferred share purchase rights declared as dividend distributions for each outstanding share of common stock		1
Dividends declared per share of common stock (in dollars per share)	$ 0.08		$ 0.08	$ 0.08

Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

Name:	us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration