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Intangible Assets and Goodwill - Components of finite-lived intangible assets acquired (Details) (USD $)
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3 Months Ended | 3 Months Ended | 3 Months Ended | |||||
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Oct. 31, 2012
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Apr. 30, 2012
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Jul. 31, 2012
Trade Names
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Apr. 30, 2012
Trade Names
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Jul. 31, 2012
Customer Relationships
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Apr. 30, 2012
Customer Relationships
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Jul. 31, 2012
Noncompete Agreement
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Apr. 30, 2012
Noncompete Agreement
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| Components of finite-lived intangible assets acquired | ||||||||
| Total gross carrying amount | $ 1,559,000 | $ 1,559,000 | $ 733,000 | $ 758,000 | $ 68,000 | |||
| Less accumulated amortization expense | 1,344,234 | 1,262,434 | ||||||
| Net intangible assets | $ 214,766 | $ 296,566 | $ 733,000 | $ 758,000 | $ 68,000 | |||
| Weighted Average Life | 5 years | 2 years | 4 years |
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- Definition
Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, 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
Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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