Income Taxes (Narrative) (Details) - USD ($) |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
Dec. 31, 2017 |
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| Operating Loss Carryforwards [Line Items] | |||
| Provision for income taxes | |||
| Operating loss carry-forward | 133,905,000 | $ 127,877,000 | |
| Federal And State [Member] | |||
| Operating Loss Carryforwards [Line Items] | |||
| Provision for income taxes | $ 0 | $ 0 | |
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- 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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- Details
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