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Note 6 - Acquisitions (Details) - Allocation of The Purchase Price For Acquisitions (USD $)
In Thousands, unless otherwise specified |
9 Months Ended | |
|---|---|---|
|
Jan. 31, 2014
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Jan. 31, 2013
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| Note 6 - Acquisitions (Details) - Allocation of The Purchase Price For Acquisitions [Line Items] | ||
| Inventories | $ 1,409 | |
| Property and equipment | 19,994 | |
| Total assets | 21,403 | |
| Total liabilities | 110 | |
| Net tangible assets acquired, net of cash | 21,293 | |
| Goodwill and other intangible assets | 5,290 | |
| Total consideration paid, net of cash acquired | 26,583 | 25,198 |
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Accrued Liabilities [Member]
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| Note 6 - Acquisitions (Details) - Allocation of The Purchase Price For Acquisitions [Line Items] | ||
| Accrued expenses | $ 110 | |