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Income Taxes (Narrative) (Details) (USD $)
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12 Months Ended | |||
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Dec. 31, 2008
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| Income Taxes [Abstract] | ||||
| Reduction in current income taxes payable | $ 14,100,000 | $ 7,200,000 | $ 1,500,000 | |
| Net operating loss carryforwards | 13,600,000 | |||
| Expiration period of net operating loss carryforwards | 2012 | |||
| Valuation allowance | 14,274,000 | 17,242,000 | ||
| Unrecognized tax benefits, including interest | 664,000 | 630,000 | 514,000 | 414,000 |
| Unrecognized tax benefits, for which deductibility is highly certain | $ 200,000 | $ 400,000 | ||
| X | ||||||||||
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- Definition
Unrecognized Tax Benefits, for which deductibility is highly certain No definition available.
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| X | ||||||||||
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- Definition
The sum of the portions of deferred tax assets as of the balance sheet date for which, based on the weight of available evidence, it is more likely than not will not be realized through future reductions of tax-based income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The sum of domestic, foreign and state and local operating loss carryforwards, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The expiration date of each operating loss carryforward included in total operating loss carryforwards, or the applicable range of such expiration dates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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