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Stock-Based Compensation (Tables) | 3 Months Ended
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Jul. 31, 2019
Share-based Compensation [Abstract] |
Stock-Based Compensation Expense Allocated | For the three-month periods ended July 31, 2019 and 2018, stock-based compensation expense was allocated as follows:
|  | Three Months Ended July 31,
(in thousands) |  | 2019 |  | 2018
Cost of sales and distribution |  | $ | 215 |  |  | $ | 159 |
Selling and marketing expenses |  | 208 |  |  | 168 |
General and administrative expenses |  | 474 |  |  | 459 |
Stock-based compensation expense |  | $ | 897 |  |  | $ | 786 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 + Details
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