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Note 17 - Income Taxes (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Jan. 31, 2016 | Jan. 31, 2015 | Jan. 31, 2014
Income Tax Disclosure [Abstract] |  |  |
Income Before Taxes, Percent | 26.00% | 31.00% | 30.00%
Effective Income Tax Rate Reconciliation, Percent | 5.00% | 13.00% | 13.00%
Undistributed Earnings of Foreign Subsidiaries (in Dollars) | $ 118.1 |  |
Liability for Uncertain Tax Positions, Noncurrent (in Dollars) | 5.8 |  |
Unrecognized Tax Benefits that Would Impact Effective Tax Rate (in Dollars) | 4.7 |  |
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit (in Dollars) | $ (1.0) |  |

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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- Definition The noncurrent portion of the amount recognized for uncertain tax positions as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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