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Goodwill and Other Intangible Assets (Tables) | 12 Months Ended
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Jan. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract] |
Goodwill and Other Intangible Assets |
|  | Weighted Average Life at 1/31/14 |  |  | January 31, 2014 |  |  | January 31, 2013 |
|  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |  |  | Gross Carrying Amount |  |  | Accumulated Amortization |  |  | Net Carrying Amount |
|  |  |  |  |  |  |  | (in thousands) |  |  |  |  |  |  |  |  | (in thousands) |  |  |  |
Goodwill |  |  |  |  |  | $ | 4,320 |  |  |  |  |  |  |  |  |  |  | $ | 4,320 |  |  |  |  |  |  |  |  |
Proprietary rights |  |  | 6.4 |  |  | $ | 3,577 |  |  | $ | (1,900 | ) |  |  | 1,677 |  |  | $ | 3,503 |  |  | $ | (1,625 | ) |  |  | 1,878 |
Customer relationships |  |  | 4.1 |  |  |  | 2,159 |  |  |  | (1,057 | ) |  |  | 1,102 |  |  |  | 2,402 |  |  |  | (876 | ) |  |  | 1,526 |
Patents |  |  | 4.1 |  |  |  | 650 |  |  |  | (318 | ) |  |  | 332 |  |  |  | 724 |  |  |  | (264 | ) |  |  | 460 |
Trade name |  |  | 4.1 |  |  |  | 177 |  |  |  | (87 | ) |  |  | 90 |  |  |  | 197 |  |  |  | (72 | ) |  |  | 125 |
Amortizable intangible assets |  |  |  |  |  | $ | 6,563 |  |  | $ | (3,362 | ) |  | $ | 3,201 |  |  | $ | 6,826 |  |  | $ | (2,837 | ) |  | $ | 3,989 |
Future Estimated Amortization Expense Related to Amortizable Intangible Assets | As of January 31, 2014, future estimated amortization expense related to amortizable intangible assets is estimated to be (in thousands):
For fiscal years ending January 31: |  |  |  |
2015 |  | $ | 639 |
2016 |  |  | 634 |
2017 |  |  | 634 |
2018 |  |  | 634 |
2019 |  |  | 634 |
Thereafter |  |  | 26 |
Total |  | $ | 3,201 |

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- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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