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v2.4.0.8

Credit Concentration (Details) | 12 Months Ended
--- | ---
Apr. 30, 2013 | Apr. 30, 2012 | Apr. 30, 2011
Customer A [Member] |  |  |
Credit Concentration [Line Items] |  |  |
Percentage Of Customer Receivables | 21.10% | 26.50% |
Percentage of revenue | 35.70% | 41.50% | 38.70%
Customer B [Member] |  |  |
Credit Concentration [Line Items] |  |  |
Percentage Of Customer Receivables | 21.10% | 30.70% |
Percentage of revenue | 22.80% | 26.00% | 34.20%

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- Details
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- Definition Percentage Of Customer Receivables + References No definition available. + Details
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Namespace Prefix: | amwd_
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Balance Type: | na
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- Definition Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
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