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Accumulated Other Comprehensive Income (Loss) (Details) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | |
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Apr. 30, 2013
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Apr. 30, 2012
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| Changes in components of accumulated other comprehensive income (loss) | ||
| Balance at beginning of period | $ (6) | |
| Other comprehensive income before reclassifications | 10 | |
| Net change in other comprehensive income | 10 | 3 |
| Balance at end of period | 4 | |
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Foreign Currency Translation Adjustments
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| Changes in components of accumulated other comprehensive income (loss) | ||
| Balance at beginning of period | (3) | |
| Other comprehensive income before reclassifications | 8 | |
| Net change in other comprehensive income | 8 | |
| Balance at end of period | 5 | |
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Unrealized losses on Marketable Securities
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| Changes in components of accumulated other comprehensive income (loss) | ||
| Balance at beginning of period | (3) | |
| Other comprehensive income before reclassifications | 2 | |
| Net change in other comprehensive income | 2 | |
| Balance at end of period | $ (1) | |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount after tax, before reclassification adjustments of other comprehensive income (loss). No definition available.
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| X | ||||||||||
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- Definition
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Net of tax amount of other comprehensive income (loss) attributable to the parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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