INTELLECTUAL PROPERTY LICENSE	12 Months Ended
Dec. 31, 2015
INTELLECTUAL PROPERTY LICENSE
INTELLECTUAL PROPERTY LICENSE	15. INTELLECTUAL PROPERTY LICENSE In July 2007, the Company entered into a world-wide exclusive license (the "BCH License") for patents co-owned by BCH and MIT initially covering the use of biopolymers to treat spinal cord injuries, and to promote the survival and proliferation of human stem cells in the spinal cord. During 2011, the BCH License was amended, and the Company obtained additional rights for use in the field of peripheral nerve injuries. The BCH License, as amended, has a 15- year term, or as long as the life of the last expiring patent right, whichever is longer, unless terminated earlier by the licensor, under certain conditions as defined in the related license agreement. In connection with the BCH License, the Company paid an initial $75 licensing fee and is required to pay certain annual maintenance fees, milestone payments and royalties. During 2011, the Company paid $75 to expand the license and, at December 31, 2011, accrued $50 for a milestone payment. License fees and milestone payments are capitalized and total $200 at December 31, 2015 (see Note 4). Maintenance and royalty costs are expensed as incurred.

15. INTELLECTUAL PROPERTY LICENSE

In July 2007, the Company entered into a world-wide exclusive license (the "BCH License") for patents co-owned by BCH and MIT initially covering the use of biopolymers to treat spinal cord injuries, and to promote the survival and proliferation of human stem cells in the spinal cord. During 2011, the BCH License was amended, and the Company obtained additional rights for use in the field of peripheral nerve injuries. The BCH License, as amended, has a 15- year term, or as long as the life of the last expiring patent right, whichever is longer, unless terminated earlier by the licensor, under certain conditions as defined in the related license agreement. In connection with the BCH License, the Company paid an initial $75 licensing fee and is required to pay certain annual maintenance fees, milestone payments and royalties. During 2011, the Company paid $75 to expand the license and, at December 31, 2011, accrued $50 for a milestone payment. License fees and milestone payments are capitalized and total $200 at December 31, 2015 (see Note 4). Maintenance and royalty costs are expensed as incurred.