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Stockholders' Equity (Details) - Schedule of stock options outstanding (USD $)
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12 Months Ended | |||||
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Jul. 31, 2014
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Jul. 31, 2013
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Jul. 31, 2012
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Jul. 31, 2011
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Jul. 31, 2014
Exercise Price Range 1 [Member]
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Jul. 31, 2014
Exercise Price Range 2 [Member]
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| Stockholders' Equity (Details) - Schedule of stock options outstanding [Line Items] | ||||||
| Range of Exercise prices | $ 2.53 | $ 12.99 | ||||
| Range of Exercise prices | $ 3.00 | $ 17.66 | ||||
| Shares (in Shares) | 399,262 | 389,828 | 736,490 | 217,362 | 181,900 | |
| Weighted-Average Remaining Contractual Life in years | 3 years 295 days | 149 days | ||||
| Weighted Average Exercise price (in Dollars per share) | $ 5.03 | $ 10.39 | $ 14.50 | $ 14.53 | $ 2.84 | $ 16.82 |
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- Details
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- Definition
The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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