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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 144
 -Paragraph 45, 46, 47

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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
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 -Paragraph 20

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher SEC
 -Name Staff Accounting Bulletin (SAB)
 -Number Topic 5
 -Section P
 -Subsection 3, 4

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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 95
 -Paragraph 28

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 144
 -Paragraph 45, 46, 47

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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 146
 -Paragraph 20

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher SEC
 -Name Staff Accounting Bulletin (SAB)
 -Number Topic 5
 -Section P
 -Subsection 3, 4

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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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 -Name Statement of Financial Accounting Standard (FAS)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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 -Name Staff Accounting Bulletin (SAB)
 -Number Topic 5
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1/1/2010 - 12/31/2010
USD ($)
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1/1/2009 - 12/31/2009
USD ($)

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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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 -Paragraph 45, 46, 47

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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 146
 -Paragraph 20

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher SEC
 -Name Staff Accounting Bulletin (SAB)
 -Number Topic 5
 -Section P
 -Subsection 3, 4

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