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Stock-Based Compensation (Summary Of Weighted Average Remaining Contractual Life And The Weighted Average Exercise Prices For Stock Options Both Outstanding And Exercisable) (Details) - Stock Options [Member] shares in Thousands | 3 Months Ended
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Apr. 30, 2016 $ / shares shares
$6.08 to $6.35 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options outstanding and exercisable, Number of shares | shares | 8
Options outstanding and exercisable, Remaining life | 4 months 2 days
Options outstanding and exercisable, Exercise price (in dollars per share) | $ 6.22
Exercise price range, lower range limit (in dollars per share) | 6.08
Exercise price range, upper range limit (in dollars per share) | $ 6.35
$6.89 to $6.89 [member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options outstanding and exercisable, Number of shares | shares | 37
Options outstanding and exercisable, Remaining life | 18 days
Options outstanding and exercisable, Exercise price (in dollars per share) | $ 6.89
Exercise price range, lower range limit (in dollars per share) | 6.89
Exercise price range, upper range limit (in dollars per share) | $ 6.89
$7.66 to $8.19 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options outstanding and exercisable, Number of shares | shares | 55
Options outstanding and exercisable, Remaining life | 1 year
Options outstanding and exercisable, Exercise price (in dollars per share) | $ 8.13
Exercise price range, lower range limit (in dollars per share) | 7.66
Exercise price range, upper range limit (in dollars per share) | $ 8.19
$6.08 to $8.19 [Member] |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Options outstanding and exercisable, Number of shares | shares | 100
Options outstanding and exercisable, Remaining life | 7 months 2 days
Options outstanding and exercisable, Exercise price (in dollars per share) | $ 7.52
Exercise price range, lower range limit (in dollars per share) | 6.08
Exercise price range, upper range limit (in dollars per share) | $ 8.19

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- Definition Share based compensation arrangement by share based payment award options outstanding and exercisable weighted average exercise price. + References No definition available. + Details
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- Definition Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding And Exercisable Weighted Average Remaining Contractual Term + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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