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Equity Incentive Awards and Warrants (Details 3) (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 1.37 | $ 1.36 | $ 1.40
Employee Stock Option [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number | 5,943 | 6,536 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value | $ 1.37 | $ 1.33 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross | 3,441 | 2,974 | 4,928
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value | $ 1.37 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period | (3,509) |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Weighted Average Grant Date Fair Value | $ 1.30 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period | (525) | (304) | (753)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Grant Date Fair Value | $ 1.26 |  |

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- Definition The weighted average fair value as of grant date pertaining to the shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References No definition available. + Details
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Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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- Definition The number of non-vested options that validly exist and are outstanding as of the balance sheet date. + References No definition available. + Details
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X
- Definition The weighted average fair value of nonvested options for which the employer is contingently obligated to issue equity instruments to an employee who has not yet satisfied service or performance criteria necessary to exercise the options. + References No definition available. + Details
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- Definition The number of options that vested during the reporting period. + References No definition available. + Details
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- Definition The weighted average fair value as of grant date pertaining to an option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to exercise options in accordance with the terms of the arrangement. + References No definition available. + Details
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- Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph b(1)(f) -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. + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph c(1) -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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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