Stock-Based Compensation (Summary Of Stock Compensation Expense) (Details) - USD ($) |
3 Months Ended | 6 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019 |
Jun. 30, 2020 |
Jun. 30, 2019 |
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||||
| Share Based Compensation | $ 69,069 | $ 127,653 | $ 145,371 | $ 288,653 | $ 456,750 | $ 1,228,335 |
| General and administrative [Member] | ||||||
| Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||||
| Share Based Compensation | 66,351 | 119,719 | 138,771 | 236,398 | 393,483 | 883,855 |
| Research and development [Member] | ||||||
| Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||||||
| Share Based Compensation | $ 2,718 | $ 7,934 | $ 6,600 | $ 52,255 | $ 63,267 | $ 344,480 |
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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