Consolidated Statements of Cash Flows (Parenthetical) (USD $) In Thousands, except Share data	12 Months Ended
Dec. 31, 2010	Jul. 15, 2011
Supplemental disclosure of non-cash investing and financing information:
Issuance of shares pursuant to Equity Incentive Plan, shares	12,104
Dividends Payable, Amount		$ 2,464
Accrued share compensation	$ 210

The aggregate amount of dividends declared, but not paid, as of the financial reporting date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 32
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant