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Shareholders' Equity (Deficit): Stock Options (Details) - shares |  | 12 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 26, 2017 | Dec. 30, 2017 | Apr. 25, 2017 | Feb. 20, 2011
2001 Plan and 2010 Plan | Stock options | Minimum |  |  |  |
Stock Option Plans |  |  |  |
Exercise price of stock options as a percentage of fair value on the date of grant |  | 100.00% |  |
Threshold voting rights above which the option exercise price may not be less than 110% of the fair market value (as a percent) |  | 10.00% |  |
Exercise price of stock options as a percentage of fair value on the date of grant for an individual who owns more than 10% of voting rights |  | 110.00% |  |
2001 Plan and 2010 Plan | Stock options | Maximum |  |  |  |
Stock Option Plans |  |  |  |
Term of the option |  | 10 years |  |
2001 Plan |  |  |  |
Stock Option Plans |  |  |  |
Number of shares authorized for issuance |  |  |  | 750,000
2010 Plan |  |  |  |
Stock Option Plans |  |  |  |
Increase in number of shares authorized for issuance | 200,000 |  |  |
Number of shares authorized for issuance | 700,000 |  | 500,000 |
Nonemployee Directors Plan | Stock options |  |  |  |
Stock Option Plans |  |  |  |
Number of shares authorized for issuance |  | 350,000 |  |

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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Represents the exercise price of stock options as a percentage of the fair market value on the date of grant. + References No definition available. + Details
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- Definition Represents the threshold percentage of voting rights in the entity's common stock, above which the option exercise price may not be less than 110 percent of the fair market value. + References No definition available. + Details
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