Summary of Significant Accounting Policies	6 Months Ended
Jun. 30, 2016
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Intangible Assets Intangible assets are research and development assets related to the Company’s primary study on azficel-T that were capitalized on the balance sheet upon emergence from bankruptcy. The portion of the reorganization value which was attributed to identifiable intangible assets was $6.3 million. Azficel-T had two current or target indications: the Company's FDA-approved product LAVIV^® and a clinical development program for azficel-T for the treatment of vocal cord scarring resulting in chronic or severe dysphonia. Effective January 1, 2012, the Company launched LAVIV and as a result, the research and development intangible assets related to the Company’s primary study were considered to be finite-lived intangible assets and began amortizing over 12 years, the estimated useful life of the assets which is analogous with the exclusivity period granted to the Company under the BLA. Finite-lived intangible assets are recorded at cost, net of accumulated amortization and, if applicable, impairment charges. Amortization of finite-lived intangible assets is provided over their estimated useful lives on a straight-line basis. The Company reviews the estimated remaining useful life of its intangible assets on an annual basis with any changes, if applicable, accounted for prospectively. In accordance with Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) 360-10-35, Impairment or Disposal of Long-Lived Assets, the Company reviews its finite-lived intangible assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. In June 2016, based on its failure to achieve primary efficacy endpoints for its Phase II clinical trial of azficel-T for the treatment of vocal cord scarring, the Company determined to wind-down its azficel-T operations as more fully described in Note 9. As a result, management concluded that the Company’s intangible assets had become fully impaired. Accordingly, a non-cash impairment charge of approximately $3.9 million was recorded during the three months ended June 30, 2016 and is included in the Condensed Consolidated Statement of Operations. Stock-Based Compensation The Company follows ASC 718, Compensation – Stock Compensation (ASC 718), or ASC 505-50, Equity – Equity Based Payments to Non-Employees, where applicable. The Company accounts for stock-based awards to employees using the fair value based method to determine compensation for all arrangements where shares of stock or equity instruments are issued for compensation. In addition, the Company accounts for stock-based compensation to non-employees in accordance with the accounting guidance for equity instruments that are issued to entities or persons other than employees. The Company uses a Black-Scholes option-pricing model to determine the fair value of each option grant as of the date of grant for expense incurred. The Black-Scholes model requires inputs for risk-free interest rate, dividend yield, expected stock price volatility and expected term of the options. The value of the award that is ultimately expected to vest based on the achievement of a performance condition (i.e., service period) is recognized as expense on a straight-line basis over the requisite service period. See Note 7 for additional details. Previously, ASC 718 required forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differed from those estimates. In the first quarter of 2016, the Company adopted FASB Accounting Standards Update (ASU) 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, which allows an entity to elect as an accounting policy either to continue to estimate the total number of awards for which the requisite service period will not be rendered or to account for forfeitures when they occur. In connection with the adoption of this ASU, the Company made an accounting policy election to account for forfeitures as they occur and applied this change in accounting policy on a modified retrospective basis. As a result, the Company recorded a cumulative-effect adjustment to retained earnings which resulted in an increase to accumulated deficit of $0.1 million with an offsetting increase to additional paid-in capital (zero net total equity impact) as of the date of adoption, principally related to additional stock compensation expense that would have been recognized on unvested outstanding options unadjusted for estimated forfeitures. Restructuring Costs Restructuring charges are primarily comprised of severance costs related to workforce reductions, contract termination and wind-down costs, asset impairments and costs of decommissioning the Company’s azficel-T manufacturing facility. In accordance with ASC 420, Exit or Disposal Cost Obligations, the Company recognizes restructuring charges when the liability has been incurred, except for one-time employee termination benefits that are incurred over time. Generally, one-time employee termination benefits (i.e. severance costs) are accrued at the date management has committed to a plan of termination and employees have been notified of their termination dates and expected severance payments. Other costs, including but not limited to, contract termination and wind-down costs and manufacturing facility decommissioning costs, will be recorded as incurred. Asset impairment charges have been, and will be, recognized when management has concluded that the assets have been impaired in accordance with ASC 360-10-35, Impairment or Disposal of Long-Lived Assets, or other applicable authoritative guidance. See Note 9 for additional details. Income Taxes In accordance with ASC 270, Interim Reporting, and ASC 740, Income Taxes, the Company is required at the end of each interim period to determine the best estimate of its annual effective tax rate and then apply that rate in providing for income taxes on a current year-to-date (interim period) basis. For the six months ended June 30, 2016 and 2015, the Company recorded no tax expense or benefit due to the expected current year loss and its historical losses. The Company has not recorded its net deferred tax asset as of either June 30, 2016 or December 31, 2015 because it maintains a full valuation allowance against all deferred tax assets as management has determined that it is not more likely than not that the Company will realize these future tax benefits. As of June 30, 2016 and December 31, 2015, the Company had no uncertain tax positions. Recently Issued Accounting Pronouncements Management does not believe that any recently issued accounting pronouncements issued by the FASB or guidance issued by the SEC had or is expected to have a material impact on the Company’s present or future consolidated financial statements.

Summary of Significant Accounting Policies

Intangible Assets

Intangible assets are research and development assets related to the Company’s primary study on azficel-T that were capitalized on the balance sheet upon emergence from bankruptcy. The portion of the reorganization value which was attributed to identifiable intangible assets was $6.3 million. Azficel-T had two current or target indications: the Company's FDA-approved product LAVIV^® and a clinical development program for azficel-T for the treatment of vocal cord scarring resulting in chronic or severe dysphonia. Effective January 1, 2012, the Company launched LAVIV and as a result, the research and development intangible assets related to the Company’s primary study were considered to be finite-lived intangible assets and began amortizing over 12 years, the estimated useful life of the assets which is analogous with the exclusivity period granted to the Company under the BLA.

Finite-lived intangible assets are recorded at cost, net of accumulated amortization and, if applicable, impairment charges. Amortization of finite-lived intangible assets is provided over their estimated useful lives on a straight-line basis. The Company reviews the estimated remaining useful life of its intangible assets on an annual basis with any changes, if applicable, accounted for prospectively. In accordance with Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) 360-10-35, Impairment or Disposal of Long-Lived Assets, the Company reviews its finite-lived intangible assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. In June 2016, based on its failure to achieve primary efficacy endpoints for its Phase II clinical trial of azficel-T for the treatment of vocal cord scarring, the Company determined to wind-down its azficel-T operations as more fully described in Note 9. As a result, management concluded that the Company’s intangible assets had become fully impaired. Accordingly, a non-cash impairment charge of approximately $3.9 million was recorded during the three months ended June 30, 2016 and is included in the Condensed Consolidated Statement of Operations.

Stock-Based Compensation

The Company follows ASC 718, Compensation – Stock Compensation (ASC 718), or ASC 505-50, Equity – Equity Based Payments to Non-Employees, where applicable. The Company accounts for stock-based awards to employees using the fair value based method to determine compensation for all arrangements where shares of stock or equity instruments are issued for compensation. In addition, the Company accounts for stock-based compensation to non-employees in accordance with the accounting guidance for equity instruments that are issued to entities or persons other than employees. The Company uses a Black-Scholes option-pricing model to determine the fair value of each option grant as of the date of grant for expense incurred. The Black-Scholes model requires inputs for risk-free interest rate, dividend yield, expected stock price volatility and expected term of the options. The value of the award that is ultimately expected to vest based on the achievement of a performance condition (i.e., service period) is recognized as expense on a straight-line basis over the requisite service period. See Note 7 for additional details.

Previously, ASC 718 required forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differed from those estimates. In the first quarter of 2016, the Company adopted FASB Accounting Standards Update (ASU) 2016-09, Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting, which allows an entity to elect as an accounting policy either to continue to estimate the total number of awards for which the requisite service period will not be rendered or to account for forfeitures when they occur. In connection with the adoption of this ASU, the Company made an accounting policy election to account for forfeitures as they occur and applied this change in accounting policy on a modified retrospective basis. As a result, the Company recorded a cumulative-effect adjustment to retained earnings which resulted in an increase to accumulated deficit of $0.1 million with an offsetting increase to additional paid-in capital (zero net total equity impact) as of the date of adoption, principally related to additional stock compensation expense that would have been recognized on unvested outstanding options unadjusted for estimated forfeitures.

Restructuring Costs

Restructuring charges are primarily comprised of severance costs related to workforce reductions, contract termination and wind-down costs, asset impairments and costs of decommissioning the Company’s azficel-T manufacturing facility. In accordance with ASC 420, Exit or Disposal Cost Obligations, the Company recognizes restructuring charges when the liability has been incurred, except for one-time employee termination benefits that are incurred over time. Generally, one-time employee termination benefits (i.e. severance costs) are accrued at the date management has committed to a plan of termination and employees have been notified of their termination dates and expected severance payments. Other costs, including but not limited to, contract termination and wind-down costs and manufacturing facility decommissioning costs, will be recorded as incurred. Asset impairment charges have been, and will be, recognized when management has concluded that the assets have been impaired in accordance with ASC 360-10-35, Impairment or Disposal of Long-Lived Assets, or other applicable authoritative guidance. See Note 9 for additional details.

Income Taxes

In accordance with ASC 270, Interim Reporting, and ASC 740, Income Taxes, the Company is required at the end of each interim period to determine the best estimate of its annual effective tax rate and then apply that rate in providing for income taxes on a current year-to-date (interim period) basis. For the six months ended June 30, 2016 and 2015, the Company recorded no tax expense or benefit due to the expected current year loss and its historical losses. The Company has not recorded its net deferred tax asset as of either June 30, 2016 or December 31, 2015 because it maintains a full valuation allowance against all deferred tax assets as management has determined that it is not more likely than not that the Company will realize these future tax benefits. As of June 30, 2016 and December 31, 2015, the Company had no uncertain tax positions.

Recently Issued Accounting Pronouncements

Management does not believe that any recently issued accounting pronouncements issued by the FASB or guidance issued by the SEC had or is expected to have a material impact on the Company’s present or future consolidated financial statements.