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Net Loss Per Share (Computation of Loss Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Numerators: |  |  |  |  |  |  |  |  |  |  |
Loss from continuing operations attributable to common stockholders |  |  |  |  |  |  |  |  | $ (13,513) | $ (13,664) | $ (20,117)
Preferred stock dividends and accretion |  |  |  |  |  |  |  |  | 0 | 0 | (1,524)
Net loss attributable to common shareholders |  |  |  |  |  |  |  |  | $ (13,513) | $ (13,664) | $ (21,641)
Denominator: |  |  |  |  |  |  |  |  |  |  |
Weighted-average common shares outstanding, basic and diluted (in shares) |  |  |  |  |  |  |  |  | 16,472,799 | 14,939,601 | 4,889,901
Loss from continuing operations per share, basic and diluted (in USD per share) |  |  |  |  |  |  |  |  | $ (0.82) | $ (0.91) | $ (4.43)
Loss from discontinued operations per share, basic and diluted (in USD per share) |  |  |  |  |  |  |  |  | 0.00 | 0.00 | 0.00
Net loss per common share, basic and diluted (in USD per share) | $ (0.12) | $ (0.14) | $ (0.22) | $ (0.36) | $ (0.28) | $ (0.16) | $ (0.22) | $ (0.25) | $ (0.82) | $ (0.91) | $ (4.43)

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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References No definition available. + Details
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- Definition Amount after tax of income (loss) from continuing operations including portion attributable to the noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=68079674&loc=SL4569616-111683 + Details
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