Acquisitions Acquisitions - Pro forma Financial Information (Details) - CTRM Business - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Pro forma revenue	$ 44,906	$ 43,863
Pro forma net loss	$ (30,115)	$ (49,124)
Pro forma net loss per share - basic and diluted (in dollars per share)	$ (3.10)	$ (18.06)
Prior Period Adjustment, Immaterial
Business Acquisition [Line Items]
Pro forma revenue	$ 100
Pro forma net loss	$ 4,000
Pro forma net loss per share - basic and diluted (in dollars per share)	$ 0.33

The pro forma basic and diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

No definition available.

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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.

+ References

No definition available.

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

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