Assets Held for Sale

12 Months Ended

Dec. 31, 2014

Assets Held for Sale [Abstract]

Disclosure of Long Lived Assets Held-for-sale [Table Text Block]

Assets Held for Sale

Lexicon’s buildings and land have been reclassified as assets held for sale on the consolidated balance sheet as of

December 31, 2014. The Company estimated the fair value of the net assets to be sold at approximately $23.8 million as of

December 31, 2014, which represents estimated selling price less costs to sell. This resulted in an impairment loss on the

assets held for sale of $13.1 million in the year ended December 31, 2014, which was recorded in impairment loss on

buildings in the accompanying consolidated statement of comprehensive loss for the year ended December 31, 2014. The fair value of the net assets to be sold was determined using Level 2 inputs using sales prices in similar real estate sales and offers received from potential purchasers of the building.