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Note 10 - Change on Accounting Method (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2017 | Mar. 31, 2019 | Dec. 31, 2018
Additional Paid in Capital | $ 521,305 | $ 543,327 | $ 540,171
Accumulated Deficit | (269,499) | $ (533,195) | $ (528,685)
Change in Warrant Liability | $ 0 |  |
Earnings Per Share | $ (8.60) |  |
Previously Reported |  |  |
Additional Paid in Capital | $ 519,702 |  |
Accumulated Deficit | (267,896) |  |
Change in Warrant Liability | $ 925 |  |
Earnings Per Share | $ (8.54) |  |
Revisions |  |  |
Additional Paid in Capital | $ 1,603 |  |
Accumulated Deficit | (1,603) |  |
Change in Warrant Liability | $ (925) |  |
Earnings Per Share | $ (0.06) |  |

X
- Definition Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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