Commitments and Contingencies	9 Months Ended
Sep. 30, 2013
Commitments and Contingencies [Abstract]
Commitments and Contingencies	Note 5 - Commitments and Contingencies SIGA Litigation In December 2006, we filed a complaint against SIGA Technologies, Inc. ("SIGA") in the Chancery Court. The complaint alleged, among other things, that we have the right to license exclusively development and marketing rights for SIGA's drug candidate, Arestvyr™ (Tecovirimat), pursuant to a merger agreement between the parties that was terminated in 2006. The complaint also alleged that SIGA failed to negotiate in good faith the terms of such a license pursuant to the terminated merger agreement with SIGA. In September 2011, the Delaware Court of Chancery issued an opinion in the case finding that SIGA had breached certain contractual obligations to us and upholding our claims of promissory estoppel. The Delaware Court of Chancery awarded us the right to receive 50% of all net profits (as defined in the court's final judgment) related to the sale of Arestvyr™ and related products for 10 years following initial commercial sale of the drug once SIGA earns $40 million in net profits from the sale of Arestvyr™and related products. The Delaware Court of Chancery also awarded us one-third of our reasonable attorney's fees and expert witness fees, which amounts to approximately $2.4 million plus interest. In May 2012, the Delaware Court of Chancery issued its final judgment. SIGA appealed aspects of the decision to the Delaware Supreme Court. In response, we cross-appealed other aspects of the decision. In May 2013, the Delaware Supreme Court issued its ruling on the appeal, affirming the Chancery Court's finding of breach of contract, reversing its finding of promissory estoppel, and remanding the case back to the Delaware Court of Chancery to reconsider the remedy and award of attorney's fees and expert witness costs in light of the Delaware Supreme Court's decision. Currently, because the Delaware Supreme Court remanded the issue of a remedy back to the Delaware Court of Chancery, we no longer have a financial interest in Arestvyr™ and may never receive any proceeds from the product. While we believe there may be significant revenue potential under a potential damages award, we can provide no assurances that on remand the Chancery Court will re-instate its prior remedy or order another remedy for us, that SIGA will not appeal any subsequent decision by the Delaware Court of Chancery, or that SIGA will not be successful in any subsequent appeal. We have not yet recorded any amount due from SIGA in relation to this case. Government Contracting Payments to the Company on cost-plus-fee contracts are provisional. The accuracy and appropriateness of costs charged to U.S. Government contracts are subject to regulation, audit and possible disallowance by the Defense Contract Audit Agency ("DCAA") and other government agencies such as BARDA. Accordingly, costs billed or billable to U.S. Government customers are subject to potential adjustment upon audit by such agencies. In our opinion, adjustments that may result from audits are not expected to have a material effect on our financial position, results of operations, or cash flows. Changes in government policies, priorities or funding levels through agency or program budget reductions by the U.S. Congress or executive agencies could materially adversely affect the Company's financial condition or results of operations. Furthermore, contracts with the U.S. Government may be terminated or suspended by the U.S. Government at any time, with or without cause. Such contract suspensions or terminations could result in unreimbursable expenses or charges or otherwise adversely affect the Company's financial condition and/or results of operations. Registration Rights Agreements We entered into a Registration Rights Agreement with the investors who participated in the July 2009 private placement of convertible notes and related warrants. We subsequently filed two registration statements on Form S-3 with the Securities and Exchange Commission to register the resale of the shares issuable upon conversion of the convertible notes and exercise of the related warrants, which registration statements have been declared effective. We are obligated to maintain the registration statements effective until the date when such shares (and any other securities issued or issuable with respect to or in exchange for such shares) have been sold. The convertible notes were converted or extinguished in 2010, although the related warrants remain outstanding. The warrants will expire on January 28, 2015. We have separate registration rights agreements with investors, under which we have obligations to keep the corresponding registration statements effective until the registrable securities (as defined in each agreement) have been sold, and under which we may have separate obligations to file registration statements in the future on either a demand or "piggy-back" basis or both. Under the terms of the convertible notes, which were converted or extinguished in 2010, if after the 2nd consecutive business day (other than during an allowable blackout period) on which sales of all of the securities required to be included on the registration statement cannot be made pursuant to the registration statement (a "Maintenance Failure"), we will be required to pay to each selling stockholder a one-time payment of 1.0% of the aggregate principal amount of the convertible notes relating to the affected shares on the initial day of a Maintenance Failure. Our total maximum obligation under this provision at September 30, 2013, which is not probable of payment, would be approximately $0.2 million. Following a Maintenance Failure, we will also be required to make to each selling stockholder monthly payments of 1.0% of the aggregate principal amount of the convertible notes relating to the affected shares on every 30th day after the initial day of a Maintenance Failure, in each case prorated for shorter periods and until the failure is cured. Our total maximum obligation under this provision, which is not probable of payment, would be approximately $0.2 million for each month until the failure, if it occurs, is cured.

Note 5 - Commitments and Contingencies

SIGA Litigation

In December 2006, we filed a complaint against SIGA Technologies, Inc. ("SIGA") in the Chancery Court. The complaint alleged, among other things, that we have the right to license exclusively development and marketing rights for SIGA's drug candidate, Arestvyr™ (Tecovirimat), pursuant to a merger agreement between the parties that was terminated in 2006. The complaint also alleged that SIGA failed to negotiate in good faith the terms of such a license pursuant to the terminated merger agreement with SIGA.

In September 2011, the Delaware Court of Chancery issued an opinion in the case finding that SIGA had breached certain contractual obligations to us and upholding our claims of promissory estoppel. The Delaware Court of Chancery awarded us the right to receive 50% of all net profits (as defined in the court's final judgment) related to the sale of Arestvyr™ and related products for 10 years following initial commercial sale of the drug once SIGA earns $40 million in net profits from the sale of Arestvyr™and related products. The Delaware Court of Chancery also awarded us one-third of our reasonable attorney's fees and expert witness fees, which amounts to approximately $2.4 million plus interest. In May 2012, the Delaware Court of Chancery issued its final judgment. SIGA appealed aspects of the decision to the Delaware Supreme Court. In response, we cross-appealed other aspects of the decision.

In May 2013, the Delaware Supreme Court issued its ruling on the appeal, affirming the Chancery Court's finding of breach of contract, reversing its finding of promissory estoppel, and remanding the case back to the Delaware Court of Chancery to reconsider the remedy and award of attorney's fees and expert witness costs in light of the Delaware Supreme Court's decision. Currently, because the Delaware Supreme Court remanded the issue of a remedy back to the Delaware Court of Chancery, we no longer have a financial interest in Arestvyr™ and may never receive any proceeds from the product.

While we believe there may be significant revenue potential under a potential damages award, we can provide no assurances that on remand the Chancery Court will re-instate its prior remedy or order another remedy for us, that SIGA will not appeal any subsequent decision by the Delaware Court of Chancery, or that SIGA will not be successful in any subsequent appeal. We have not yet recorded any amount due from SIGA in relation to this case.

Government Contracting

Payments to the Company on cost-plus-fee contracts are provisional. The accuracy and appropriateness of costs charged to U.S. Government contracts are subject to regulation, audit and possible disallowance by the Defense Contract Audit Agency ("DCAA") and other government agencies such as BARDA. Accordingly, costs billed or billable to U.S. Government customers are subject to potential adjustment upon audit by such agencies. In our opinion, adjustments that may result from audits are not expected to have a material effect on our financial position, results of operations, or cash flows.

Changes in government policies, priorities or funding levels through agency or program budget reductions by the U.S. Congress or executive agencies could materially adversely affect the Company's financial condition or results of operations. Furthermore, contracts with the U.S. Government may be terminated or suspended by the U.S. Government at any time, with or without cause. Such contract suspensions or terminations could result in unreimbursable expenses or charges or otherwise adversely affect the Company's financial condition and/or results of operations.

Registration Rights Agreements

We entered into a Registration Rights Agreement with the investors who participated in the July 2009 private placement of convertible notes and related warrants. We subsequently filed two registration statements on Form S-3 with the Securities and Exchange Commission to register the resale of the shares issuable upon conversion of the convertible notes and exercise of the related warrants, which registration statements have been declared effective. We are obligated to maintain the registration statements effective until the date when such shares (and any other securities issued or issuable with respect to or in exchange for such shares) have been sold. The convertible notes were converted or extinguished in 2010, although the related warrants remain outstanding. The warrants will expire on January 28, 2015.

We have separate registration rights agreements with investors, under which we have obligations to keep the corresponding registration statements effective until the registrable securities (as defined in each agreement) have been sold, and under which we may have separate obligations to file registration statements in the future on either a demand or "piggy-back" basis or both.

Under the terms of the convertible notes, which were converted or extinguished in 2010, if after the 2nd consecutive business day (other than during an allowable blackout period) on which sales of all of the securities required to be included on the registration statement cannot be made pursuant to the registration statement (a "Maintenance Failure"), we will be required to pay to each selling stockholder a one-time payment of 1.0% of the aggregate principal amount of the convertible notes relating to the affected shares on the initial day of a Maintenance Failure. Our total maximum obligation under this provision at September 30, 2013, which is not probable of payment, would be approximately $0.2 million.

Following a Maintenance Failure, we will also be required to make to each selling stockholder monthly payments of 1.0% of the aggregate principal amount of the convertible notes relating to the affected shares on every 30th day after the initial day of a Maintenance Failure, in each case prorated for shorter periods and until the failure is cured. Our total maximum obligation under this provision, which is not probable of payment, would be approximately $0.2 million for each month until the failure, if it occurs, is cured.