Stock-Based Compensation (Summary Of Stock Compensation Expense) (Details) - USD ($) |
3 Months Ended | |
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Mar. 31, 2019 |
Mar. 31, 2018 |
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| Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||
| Share Based Compensation | $ 161,000 | $ 296,577 |
| General and administrative [Member] | ||
| Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||
| Share Based Compensation | 116,679 | 216,415 |
| Research and development [Member] | ||
| Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ||
| Share Based Compensation | $ 44,321 | $ 80,162 |
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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. 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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