XML 32 R21.htm IDEA: XBRL DOCUMENT
v3.21.2

Earnings Per Share: (Tables) | 9 Months Ended
--- | ---
Sep. 25, 2021
Earnings Per Share: |
Schedule of shares outstanding used in the calculation of basic and diluted earnings per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended | ​ | Nine Months Ended | ​
​ |  | September 25, 2021 |  | September 26, 2020 |  | September 25, 2021 |  | September 26, 2020 |
Denominator for basic EPS — weighted average common shares |  | 3,635,055 |  | 3,730,490 |  | 3,688,419 |  | 3,710,112 |
Dilutive shares associated with option plans |  | 147,818 |  | 127,212 |  | 140,903 |  | 147,642 |
Denominator for diluted EPS — weighted average common shares and dilutive potential common shares |  | 3,782,873 |  | 3,857,702 |  | 3,829,322 |  | 3,857,754 |
Options excluded from EPS calculation — anti-dilutive |  | 3,038 |  | 11,979 |  | 6,833 |  | 11,057 |

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration