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Transactions with Related Parties - Additional Information - Management (Details) | 12 Months Ended | 14 Months Ended | 3 Months Ended | 12 Months Ended | 1 Months Ended | 4 Months Ended | 12 Months Ended | 4 Months Ended | 12 Months Ended | 3 Months Ended |  |  | 9 Months Ended |  |  | 9 Months Ended |  |  | 12 Months Ended
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Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2011 Former CEO USD ($) | Dec. 31, 2011 Former CEO EUR (€) | Mar. 31, 2012 Former CEO USD ($) | Aug. 31, 2011 Former CFO USD ($) | Dec. 31, 2011 Former CFO USD ($) | Dec. 31, 2011 Former CFO EUR (€) | Dec. 31, 2011 Former CEO and Former CFO USD ($) | Feb. 07, 2011 CEO | May 03, 2013 CEO USD ($) | May 03, 2013 CEO EUR (€) | Dec. 31, 2013 CEO USD ($) | Dec. 31, 2013 CEO EUR (€) | Dec. 31, 2012 CEO USD ($) | Dec. 31, 2011 CEO USD ($) | May 03, 2013 CFO USD ($) | May 03, 2013 CFO EUR (€) | Dec. 31, 2013 CFO USD ($) | Dec. 31, 2013 CFO EUR (€) | Dec. 31, 2012 CFO USD ($) | Dec. 31, 2011 CFO USD ($) | Dec. 31, 2013 COO USD ($) | Dec. 31, 2013 COO EUR (€) | Dec. 31, 2012 COO USD ($) | Dec. 31, 2011 COO USD ($) | Dec. 31, 2013 Executive Officers USD ($) | Dec. 31, 2012 Executive Officers USD ($) | Dec. 31, 2011 Executive Officers USD ($) | Dec. 31, 2013 Management and Directors USD ($) | Dec. 31, 2012 Management and Directors USD ($) | Dec. 31, 2011 Management and Directors USD ($) | Apr. 20, 2012 First Installment CEO | May 03, 2014 First Installment CEO | Feb. 07, 2012 First Installment CEO | Sep. 11, 2013 Second Installment CEO | May 03, 2015 Second Installment CEO | Feb. 07, 2013 Second Installment CEO | Sep. 11, 2013 Third Installment CEO | May 03, 2016 Third Installment CEO | Feb. 07, 2014 Third Installment CEO | Dec. 31, 2013 Renewal Consulting Agreements CEO USD ($) | Dec. 31, 2013 Renewal Consulting Agreements CFO USD ($)
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Annual Consulting Fees |  |  |  | $ 511,000 | € 370,000 |  |  | $ 345,000 | € 250,000 |  |  | $ 241,000 | € 174,600 | $ 221,000 | € 160,000 |  |  | $ 141,000 | € 102,000 | $ 77,000 | € 56,000 |  |  | $ 162,000 | € 117,519 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchange rate EUR/USD | 1.38 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Executive directors consultancy fees |  |  |  |  |  |  |  |  |  | 337,000 |  |  |  | 79,000 |  | 230,000 | 225,000 |  |  | 25,000 |  | 72,000 | 52,000 | 161,000 |  | 151,000 | 81,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 172,000 | 91,000
Severance payment |  |  |  |  |  | 2,347,000 | 463,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares granted | 279,333 | 90,667 | 49,867 |  |  |  |  |  |  |  | 28,000 | 28,000 | 28,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares vested |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,333 | 9,333 |  | 9,333 | 9,333 |  | 9,334 | 9,334 |  |
Number of shares issued in period |  |  |  |  |  |  | 21,867 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,333 |  |  | 9,333 |  |  | 9,334 |  |  |  |
Fair value of shares |  |  |  |  |  |  | $ 34.5 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
General and administrative expenses | 9,910,000 | 9,320,000 | 12,455,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 528,000 | 453,000 | 3,505,000 | 114,000 | 124,000 | 151,000 |  |  |  |  |  |  |  |  |  |  |
Due to related parties | $ 559,000 | $ 262,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 111,000 | $ 121,000 |  |  |  |  |  |  |  |  |  |  |  |

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