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USD ($)

USD ($) / shares

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USD ($)

USD ($) / shares
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USD ($)

USD ($) / shares

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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 141
 -Paragraph 51
 -Subparagraph g

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 2
 -Paragraph 12, 13

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 86
 -Paragraph 11, 12

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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 34
 -Paragraph 21
 -Subparagraph b

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