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Stock And Stock Options (Narrative) (Details) |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 21, 2016 | Feb. 01, 2008 shares | Mar. 28, 2019 USD ($) | Dec. 31, 2018 USD ($) shares | Dec. 31, 2017 USD ($) shares | Oct. 25, 2000 shares
Stock Options [Line Items] |  |  |  |  |  |
Number of shares that may be granted |  |  |  |  |  | 7,000,000
Number of additional shares that may be granted |  | 3,500,000 |  |  |  |
Stock Incentive Plan term |  |  |  | 10 years |  |
Purchase price floor of fair market value |  |  |  | 85.00% |  |
Stock based compensation | $ |  |  |  | $ 23,000 | $ 14,000 |
Reverse stock split | 0.1 |  |  |  |  |
Common stock, shares issued |  |  |  | 10,639,290 | 10,619,924 |
Directors And CEO [Member] |  |  |  |  |  |
Stock Options [Line Items] |  |  |  |  |  |
Stock based compensation | $ |  |  |  | $ 23,000 | $ 14,000 |
Common stock, shares issued |  |  |  | 19,366 | 23,503 |
Four Non-Executive Directors [Member] |  |  |  |  |  |
Stock Options [Line Items] |  |  |  |  |  |
Number of additional shares that may be granted |  |  |  | 0 | 0 |
Voluntary Resignation [Member] |  |  |  |  |  |
Stock Options [Line Items] |  |  |  |  |  |
Stock Incentive Plan exercisable period |  |  |  | 3 months |  |
Subsequent Event [Member] | Directors And CEO [Member] |  |  |  |  |  |
Stock Options [Line Items] |  |  |  |  |  |
Stock based compensation | $ |  |  | $ 4,714 |  |  |

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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