2.2.0.25falsefalse41301 - Disclosure - Shareholders' Equity (Narrative) (Details)truefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010
USD ($)
USD ($) / shares
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USD ($)
USD ($) / shares
$Duration_1_1_2009_To_12_31_2009http://www.sec.gov/CIK0000093751duration2009-01-01T00:00:002009-12-31T00:00:00Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit14Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$3falsefalseUSDfalsefalse1/1/2008 - 12/31/2008
USD ($)
USD ($) / shares
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-Name Statement of Financial Accounting Standard (FAS)
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-Name Accounting Research Bulletin (ARB)
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-Name Accounting Research Bulletin (ARB)
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-Name Statement of Financial Accounting Standard (FAS)
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-Name Statement of Financial Accounting Standard (FAS)
-Number 129
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-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 1
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-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 99-7
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