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Income Taxes (Details Textual) |  |  | 3 Months Ended
--- | --- | --- | ---
Apr. 30, 2014 USD ($) | Jan. 31, 2014 USD ($) | Apr. 30, 2014 China Tax Authority [Member] USD ($) | Apr. 30, 2014 China Tax Authority [Member] CNY | Apr. 30, 2014 Brazil [Member] USD ($) | Apr. 30, 2014 Brazil [Member] BRL | Apr. 30, 2014 Argentina Subsidiary [Member] China Tax Authority [Member] USD ($)
Income Taxes [Line Items] |  |  |  |  |  |  |
Deferred Tax Liability Maximum Additional Tax Liability |  |  | $ 16,000 | 100,000 |  |  |
Investment In Subsidiary For Tax Avoidance |  |  |  |  |  |  | 500,000
Deferred Tax Assets, Valuation Allowance | 0 | 0 |  |  |  |  |
Income Tax Examination, Penalties and Interest Expense, Total |  |  |  |  | 1,000,000 | 2,265,728 |
Income Tax Examination, Tax Expense |  |  |  |  | 127,000 | 280,416 |
Undistributed Earnings of Foreign Subsidiaries | 18,900,000 |  |  |  |  |  |
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries | $ 3,300,000 |  |  |  |  |  |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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- Definition The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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