| http://www.w3.org/ns/prov#value | - DECEMBER 31, 2014 2013 2012 2011 2010 (in thousands, except share and per share data) BALANCE SHEET DATA: Cash and equivalents $14,353 $13,591 $23,212 $12,643 $9,873 Working capital surplus (deficit) 5,833 (16,513) (55,086) (34,544) (37,976)
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