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USD ($) / shares

USD ($)

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USD ($)

USD ($) / shares

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USD ($)

USD ($) / shares
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher AICPA
 -Name Accounting Research Bulletin (ARB)
 -Number 43
 -Chapter 4
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 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
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