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Stock Award Plans (Details) - shares |  | 3 Months Ended
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May 08, 2020 | Mar. 31, 2020
Employee Stock Award Plan [Member] | RSUs [Member] |  |
Stock Award Plan Information [Abstract] |  |
Number of restricted stock and units granted (in shares) |  | 151,845
Vesting period |  | 5 years
Employee Stock Award Plan [Member] | Stock Options [Member] |  |
Stock Award Plan Information [Abstract] |  |
Number of stock options granted (in shares) |  | 114,600
Vesting period |  | 3 years
Stock options expiration period |  | 7 years
Director Plan [Member] | Restricted Stock [Member] | Subsequent Events [Member] |  |
Stock Award Plan Information [Abstract] |  |
Number of restricted stock and units granted (in shares) | 39,913 |
Vesting period | 6 months |

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(2) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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