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Stock-Based Compensation (Restricted Shares Activity) (Details) (USD $) | 12 Months Ended
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Dec. 31, 2011 | Dec. 31, 2010
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures [Abstract] |  |
Restricted Shares at December 31, 2010 | 2,138 |
Restricted Shares Granted | 827 |
Restricted Shares Vested | (1,051) |
Restricted Shares at December 31, 2011 | 1,914 | 2,138
Restricted Stock, Weighted-Average Grant-Date Fair Value, Beginning |  | $ 4.64
Restricted Stock, Weighted-Average Grant-Date Fair Value, Granted | $ 5.11 |
Restricted Stock, Weighted-Average Grant-Date Fair Value, Vested | $ 5.07 |
Restricted Stock, Weighted-Average Grant-Date Fair Value, Ending | $ 4.61 |

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- Definition Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4, 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 4: 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 + Details
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- Details
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- Definition Restricted Shares Unvested + References No definition available. + Details
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- Definition Restricted Shares Vested + References No definition available. + Details
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- Definition Restricted Stock, Weighted-Average Grant-Date Fair Value, Vested + References No definition available. + Details
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