Financial Information by Geographic Location (Details) - USD ($) |
3 Months Ended | |
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Jul. 31, 2016 |
Jul. 31, 2015 |
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Revenues from External Customers and Long-Lived Assets [Line Items] | ||
Revenues by geographic location | $ 4,915,000 | $ 7,338,000 |
United States | ||
Revenues from External Customers and Long-Lived Assets [Line Items] | ||
Revenues by geographic location | 3,262,000 | 6,113,000 |
Europe | ||
Revenues from External Customers and Long-Lived Assets [Line Items] | ||
Revenues by geographic location | 1,143,000 | 1,116,000 |
Other (principally Asia Pacific Region) | ||
Revenues from External Customers and Long-Lived Assets [Line Items] | ||
Revenues by geographic location | $ 510,000 | $ 109,000 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Aggregate revenue during the period from sale of goods in the normal course of business, before deducting returns, allowances and discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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