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Shareholders' Equity - Share Capital Transactions (Details) - USD ($)
$ / shares in Thousands, $ in Thousands
 12 Months Ended
Sep. 28, 2011
Aug. 18, 2011
Dec. 31, 2013
Class of Stock [Line Items]      
Redemption or conversion of preferred stock     $ 7,000
Common Stock [Member]      
Class of Stock [Line Items]      
Number of shares called by warrant 79,037    
Repurchase of common stock warrant $ 185    
Series C Preferred Stock [Member]      
Class of Stock [Line Items]      
Shares issued during the period   7,000  
Shares issued during the period, value   $ 7,000  
Shares redeemed or converted in the period     7,000
Redemption or conversion of preferred stock     $ 7,088
Preferred Stock, Redemption Price Per Share     $ 1
Series A Preferred Stock [Member]      
Class of Stock [Line Items]      
Shares redeemed or converted in the period   7,000  
Redemption or conversion of preferred stock   $ 7,000