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Share-based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2014
Non-Cash, Share-Based Compensation Expense | For the three month period ended March 31, 2014 and 2013 and for the period from Inception through March 31, 2014, the Company recognized the following non-cash, share-based compensation expense in the consolidated statement of operations (in thousands):
| Three Months Ended March 31, |  |  | Period from December 17, 2001 (date of inception) to March 31, |
| 2014 |  |  | 2013 |  |  | 2014 |
Research and Development | $ | 40 |  |  | $ | 15 |  |  | $ | 707 |
Selling, General and Administrative |  | 118 |  |  |  | 27 |  |  |  | 1,935 |
Restructuring Expense |  | — |  |  |  | — |  |  |  | 387 |
Total | $ | 158 |  |  | $ | 42 |  |  | $ | 3,029 |
Summary of Stock Option Activities | Stock option and stock award transactions for the three month period ended March 31, 2014 under the Company’s stock incentive plans were as follows:
| Number of Options |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Term (in years) |
Options outstanding at December 31, 2013 |  | 843,442 |  |  | $ | 3.76 |  |  |  | 8.94 |
Granted |  | 200,079 |  |  |  | 1.91 |  |  |  |  |
Exercised | — |  |  | — |  |  |  |  |
Forfeited and cancelled |  | (27 | ) |  |  | 1,908.00 |  |  |  |  |
Options outstanding at March 31, 2014 |  | 1,043,494 |  |  | $ | 3.35 |  |  |  | 8.93 |
Options exercisable at March 31, 2014 |  | 266,655 |  |  | $ | 8.42 |  |  |  | 7.13 |
Options vested and expected to vest |  | 1,031,382 |  |  | $ | 3.37 |  |  |  | 8.92 |
Summary of RSU activity |
| Number of Shares |  |  | Weighted Average Grant Date Fair Value |
Restricted stock units outstanding at December 31, 2013 |  | 419,000 |  |  | $ | 1.39 |
Granted |  | 191,700 |  |  |  | 1.95 |
Vested and released | — |  |  | — |
Forfeited and cancelled | — |  |  | — |
Restricted stock units outstanding at March 31, 2014 |  | 610,700 |  |  | $ | 1.57 |

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- Definition Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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