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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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plan that validly exist and are outstanding as of the balance-sheet date, including vested options.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 123R
 -Paragraph A240
 -Subparagraph b(1)(a)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 123R
 -Paragraph A240
 -Subparagraph b(1)(b)

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