Investments in Marketable Securities (Details Textual)
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12 Months Ended | ||||||||||||||
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Jan. 31, 2013
USD ($)
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Jan. 31, 2012
USD ($)
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Jan. 31, 2011
USD ($)
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Sep. 01, 2012
USD ($)
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Sep. 01, 2012
EUR (€)
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Sep. 01, 2009
USD ($)
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Sep. 01, 2009
EUR (€)
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Restricted cash | $ 938,000 | $ 1,200,000 | |||||||||||||
Acquisition-related consideration | 5,656,000 | [1] | 12,255,000 | [1] | 2,200,000 | [1] | 1,700,000 | [1] | 1,000,000 | [1] | 800,000 | [1] | |||
Marketable Securities, Current | 6,100,000 | 7,900,000 | |||||||||||||
Marketable Securities, Noncurrent | 7,200,000 | 4,100,000 | |||||||||||||
Available-for-sale Securities | 0 | 0 | 500,000 | ||||||||||||
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss), Net of Tax | $ 6,000 | $ 100,000 | $ 100,000 | ||||||||||||
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- Definition
Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The change in unrealized holding gain (loss), net of tax, on available-for-sale securities included in a separate component of shareholders' equity during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fair value, as of the acquisition date, of potential payments under the contingent consideration arrangement including cash and shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale which are intended to be held for less than one year or the normal operating cycle, whichever is longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Total debt and equity financial instruments including: (1) securities held-to-maturity and (2) securities available-for-sale that will be held for the long-term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. For a classified balance sheet represents the current portion only (the noncurrent portion has a separate concept); there is a separate and distinct element for unclassified presentations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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