DEFINED CONTRIBUTION PLAN (Details) (USD $)	12 Months Ended
Dec. 31, 2011 Percent	Dec. 31, 2010	Dec. 31, 2009
DEFINED CONTRIBUTION PLAN [Abstract]
Defined Contribution plan company matching contributions (in hundredths)	50.00%
Defined contribution plan matching contribution, percentage of employee compensation eligible for matching contribution, maximum (in hundredths)	10.00%
Defined contribution expense	$ 382,000	$ 381,000	$ 396,000

The amount of the cost recognized during the period for defined contribution plans.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

Name:	us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration