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Net Loss Per Share | 12 Months Ended
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Dec. 31, 2017
Net Loss Per Share [Abstract] |
Net Loss Per Share | NOTE 10. NET LOSS PER SHARE ﻿ The following options outstanding and warrants to purchase common stock were excluded from the computation of diluted net loss per share for the periods presented because the effect of including such shares would have been antidilutive: ﻿
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﻿ | Years Ended December 31,
﻿(in thousands) | 2017 |  | 2016 |  | 2015
﻿Options outstanding | 25,404 |  | 22,501 |  | 19,468
﻿Warrants to purchase common stock | — |  | — |  | 5,500
﻿ ﻿

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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