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Consolidated Statements of Operations and Comprehensive Loss (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended | 132 Months Ended
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2012
Costs and expenses: |  |  |
Research and development | $ 1,092 | $ 2,315 | $ 42,677
Selling, general and administrative | 3,227 | 5,046 | 42,583
Merger transaction costs |  |  | 5,470
Restructuring expense, net |  |  | 2,413
Loss on impairment of in-process research and development |  |  | 6,000
Total costs and expenses | 4,319 | 7,361 | 99,143
Loss from operations | (4,319) | (7,361) | (99,143)
Gain on assignment of patent rights |  | 2,000 | 2,000
Gain on bargain purchase |  |  | 25,282
Interest and other income | 2 | 2 | 2,028
Interest and other expense | (3) | (5) | (442)
Loss before income taxes | (4,320) | (5,364) | (70,275)
Benefit from income taxes |  |  | 2,281
Net loss and comprehensive loss | (4,320) | (5,364) | (67,994)
Less: Accretion of redeemable convertible preferred stock |  |  | (245)
Less: Deemed preferred stock dividend for additional common shares issuable under anti-dilution provisions |  |  | (781)
Net loss available to common stockholders | $ (4,320) | $ (5,364) | $ (69,020)
Net loss available to common stockholders per share: |  |  |
Basic and diluted | $ (1.94) | $ (3.21) |
Weighted average shares outstanding: |  |  |
Basic and diluted | 2,223,516 | 1,673,041 |

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