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Stock-Based Compensation Arrangements (Tables) | 12 Months Ended
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Dec. 31, 2014
Stock-Based Compensation Arrangements |
Schedule of stock based compensation expense |
|  | Year Ended December 31, 2013 |  |  | Year Ended December 31, 2014 |
Research and development |  | $ | 75 |  |  | $ | 392 |
General and administrative |  |  | 282 |  |  |  | 831 |
Stock-based compensation costs before income taxes |  | $ | 357 |  |  | $ | 1,223 |
Schedule of stock option activity |
|  | Number of Options Outstanding |  |  | Weighted Average Exercise Price Per Share |  |  | Weighted Average Remaining Contractual Term (Years) |  |  | Aggregate Intrinsic Value ($000s) |
Options outstanding at December 31, 2012 |  |  | 463,023 |  |  | $ | 26.61 |  |  |  | 5.58 |  |  | $ | 347 |
Granted |  |  | 494,663 |  |  | $ | 4.22 |  |  |  |  |  |  |  |  |
Exercised |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Cancelled/forfeited |  |  | (8,001 | ) |  | $ | 18.55 |  |  |  |  |  |  |  |  |
Options outstanding at December 31, 2013 |  |  | 949,685 |  |  | $ | 15.02 |  |  |  | 7.38 |  |  | $ | 152 |
Granted |  |  | 63,000 |  |  | $ | 3.11 |  |  |  |  |  |  |  |  |
Exercised |  |  | — |  |  |  |  |  |  |  |  |  |  |  |  |
Cancelled/forfeited |  |  | (2,387 | ) |  | $ | 31.08 |  |  |  |  |  |  |  |  |
Options outstanding at December 31, 2014 |  |  | 1,010,298 |  |  | $ | 14.24 |  |  |  | 6.58 |  |  | $ | — |
Unvested at December 31, 2014 |  |  | 402,900 |  |  | $ | 4.07 |  |  |  | 8.95 |  |  | $ | — |
Vested and exercisable at December 31, 2014 |  |  | 607,395 |  |  | $ | 20.99 |  |  |  | 5.00 |  |  | $ | — |
Schedule of assumptions for stock option grants to employees and directors |
|  | Year ended December 31, 2013 |  | Year ended December 31, 2014
Expected term (years) |  | 5 —6 |  | 6
Risk free interest rate |  | 0.84% - 1.865% |  | 1.835% - 2.005%
Volatility |  | 97—108% |  | 101%
Expected dividend yield over expected term |  | 0.00% |  | 0.00%
Resulting weighted average grant date fair value |  | $3.25 |  | $2.48
Schedule of restricted stock units activity |
|  | Restricted Stock Units |  |  | Weighted Average Grant Date Value Per Share |
Non-vested at December 31, 2012 |  |  | 39,377 |  |  | $ | 5.34 |
Granted |  |  | 85,097 |  |  | $ | 5.71 |
Forfeited |  |  | (5,226 | ) |  | $ | 5.00 |
Non-vested at December 31, 2013 |  |  | 119,248 |  |  | $ | 5.62 |
Granted |  |  | — |  |  | $ | — |
Vested |  |  | (29,999 | ) |  | $ | 5.81 |
Forfeited |  |  | (233 | ) |  | $ | 5.39 |
Non-vested at December 31, 2014 |  |  | 89,016 |  |  | $ | 5.56 |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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