Goodwill and Intangible Assets - Components of finite-lived intangible assets acquired (Details) (USD $)
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3 Months Ended | |
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Jul. 31, 2013
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Apr. 30, 2013
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Components of finite-lived intangible assets acquired | ||
Total gross carrying amount | $ 1,559,000 | $ 1,559,000 |
Less accumulated amortization expense | 1,466,934 | 1,426,034 |
Net intangible assets | 92,066 | 132,966 |
Trade Names
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Components of finite-lived intangible assets acquired | ||
Total gross carrying amount | 733,000 | 733,000 |
Net intangible assets | 733,000 | 733,000 |
Weighted Average Life | 5 years | |
Customer Relationships
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Components of finite-lived intangible assets acquired | ||
Total gross carrying amount | 758,000 | 758,000 |
Net intangible assets | 758,000 | 758,000 |
Weighted Average Life | 2 years | |
Noncompete Agreement
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Components of finite-lived intangible assets acquired | ||
Total gross carrying amount | 68,000 | 68,000 |
Net intangible assets | $ 68,000 | $ 68,000 |
Weighted Average Life | 4 years |