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Stock-Based Compensation (Tables) | 3 Months Ended
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Jul. 27, 2019
Stock-Based Compensation |
Summary of total stock-based compensation expense | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Quarter Ended
(Unaudited, amounts in thousands) |  | 7/27/19 |  | 7/28/18
Equity-based awards expense | ​ | $ | 1,675 | ​ | $ | 2,040
Liability-based awards expense | ​ |  | (60) | ​ |  | 166
Total stock-based compensation expense | ​ | $ | 1,615 | ​ | $ | 2,206
​
Fair value assumptions for stock options | ​
​ | ​ | ​ | ​ | ​
​ | ​ | Fiscal 2020 | ​
(Unaudited) |  | grant | ​
Risk-free interest rate | ​ | ​ | 2.19 | %
Dividend rate | ​ | ​ | 1.72 | %
Expected life in years |  | ​ | 5.0 |
Stock price volatility | ​ | ​ | 34.27 | %
Fair value per share | ​ | $ | 7.94 | ​
​

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- Definition Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit. + 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=116856206&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + 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 (f)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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