Organization and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2014
Reverse Stock Split	Reverse Stock Split — On May 22, 2014, the shareholders approved, and the Company filed a certificate of amendment to its Amended and Restated Certificate of Incorporation with the Secretary of the State of Delaware effecting, a one-for-ten reverse split of the Company's common stock, par value $0.001 (the “Reverse Stock Split”). The Reverse Stock Split did not change the par value of the Company’s common stock, the Company’s authorized shares of common stock or preferred stock. Upon the effectiveness of the Reverse Stock Split, the Company’s issued and outstanding shares of common stock decreased from approximately 80 million to approximately 8 million shares, all with a par value of $0.001. The Company has no outstanding shares of preferred stock. All share, per share and stock option information in the accompanying unaudited condensed consolidated financial statements and the notes thereto have been restated for all periods to reflect the reverse stock split.
Discontinued Operations	Discontinued Operations — Financial information related to certain divested businesses of the Company is reported as discontinued operations for all periods presented as discussed in Note 2, Discontinued Operations. Reclassifications of prior period amounts related to discontinued operations have been made to conform to the current period presentation.
Going Concern	Going Concern — The accompanying unaudited condensed consolidated financial statements have been prepared under the assumption that the Company will continue as a going concern. Such assumption contemplates the realization of assets and satisfaction of liabilities in the normal course of business. The Company has historically incurred operating losses and has a total accumulated deficit of $329 million as of June 30, 2014. This factor, among others, including the ongoing effects of the U.S. Government budget uncertainty on certain parts of its business, have raised substantial doubt about the Company’s ability to continue as a going concern. The consolidated financial statements do not include any adjustments that might be necessary should the Company be unable to continue as a going concern. The ability to continue as a going concern is contingent upon the Company’s ability to generate sufficient revenues and cash flows to meet its obligations on a timely basis and its ability to raise cash through financing or by disposing of certain noncore assets as required. The Company’s plans may be adversely impacted if it fails to realize its assumed levels of revenues and expenses or savings from its cost reduction activities. If events, such as federal budget related reductions in spending cause a significant adverse impact on its revenues or expenses, the Company may need to delay, reduce the scope of, or eliminate one or more of its development programs or obtain funds through collaborative arrangements with others that may require the Company to relinquish rights to certain of its technologies, or programs that the Company would otherwise seek to develop or commercialize itself, and to reduce personnel related costs. The Company may resort to contingency plans to make needed cost reductions upon determination that funds will not be available in a timely matter. These contingency plans include consolidating certain functions or disposing of non-core or underperforming assets. As stated in Note 2, Discontinued Operations, the Company has sold certain non-core or underperforming businesses and may continue to do so in the future, if needed. The Company may also need to raise additional funds through public or private offerings of additional debt or equity securities from time to time as it may deem appropriate, which might cause dilution to existing stockholders. However, there can be no assurance that the Company will be able to raise such funds if and when they are required. Failure to obtain future funding when needed or on acceptable terms would adversely affect the Company’s ability to fund operations.
Correction of Prior Period Errors	Correction of Prior Period Errors — In connection with the preparation of its unaudited condensed consolidated financial statements for the quarter ended September 30, 2013, the Company identified an error related to the classification of cash paid for interest on financial liabilities in the condensed consolidated statements of cash flows. The cash paid for interest on financial liabilities was presented as cash outflows from financing activities, which should have been presented as cash outflows from operating activities in the condensed consolidated statements of cash flows in the Company’s Form 10-Q filing for the six months ended June 30, 2013. As a result, cash used in operating activities was understated and cash used in financing activities was overstated for the six months ended June 30, 2013 by $0.8 million. The amounts for the six months ended June 30, 2013 have been adjusted to correct the impact of such error. Using both quantitative and qualitative measures, the Company believes that the impact of this error is immaterial, individually and in aggregate, to the unaudited condensed consolidated financial statements for the six months ended June 30, 2013 and therefore an amendment to the Form 10-Q for the six months ended June 30, 2013 is not considered necessary.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-09 “Revenue from Contracts with Customers" (“ASU 2014-09”), which supersedes nearly all existing revenue recognition guidance under U.S. GAAP. The core principle of ASU 2014-09 is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration to which an entity expects to be entitled for those goods or services. ASU 2014-09 defines a five step process to achieve this core principle and, in doing so, more judgment and estimates may be required within the revenue recognition process than are required under existing U.S. GAAP. It is effective for annual periods beginning on or after December 15, 2016, and interim periods therein, using either of the following transition methods: (i) a full retrospective approach reflecting the application of the standard in each prior reporting period with the option to elect certain practical expedients, or (ii) a retrospective approach with the cumulative effect of initially adopting ASU 2014-09 recognized at the date of adoption (which includes additional footnote disclosures). Early adoption is not permitted. We are currently evaluating the impact of our pending adoption of ASU 2014-09 on our condensed consolidated financial statements and have not yet determined the method by which we will adopt the standard in 2017. In April 2014, the FASB issued ASU No. 2014-08 (“ASU 2014-08”) “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity." ASU 2014-08 raises the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. It is effective for annual periods beginning on or after December 15, 2014. Early adoption is permitted but only for disposals that have not been reported in financial statements previously issued. We are currently in the process of evaluating the impact of the adoption on our condensed consolidated financial statements. In July 2013, the FASB issued ASU No. 2013-11, Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists (“ASU 2013-11”). ASU 2013-11 provides guidance on financial statement presentation of an unrecognized tax benefit when a net operating loss (“NOL”) carryforward, a similar tax loss, or a tax credit carryforward exists. The updated accounting standard requires an unrecognized tax benefit, or a portion of an unrecognized tax benefit, to be presented in the financial statements as a reduction to a deferred tax asset for an NOL or tax credit carryforward whenever the NOL or tax credit carryforward would be available to reduce the additional taxable income or tax due if the tax position is disallowed. The ASU’s amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013, with early adoption permitted. The amendments should be applied to all unrecognized tax benefits that exist as of the effective date, and may be applied retrospectively. The Company adopted this standard in the first quarter of 2014. The adoption did not result in a change to the tax provision and it did not have a significant impact to the presentation of long-term taxes payable or deferred tax assets.

Disclosure of accounting policy for any discontinued operations. The results of operations of a component of an entity that either has been disposed of or is classified as held for sale is reported in discontinued operations if both: (a) the operations and cash flows of the component have been (or will be) eliminated from the ongoing operations of the entity as a result of the disposal transaction and (b) the entity will not have any significant continuing involvement in the operations of the component after the disposal transaction. If the entity elects to allocate interest expense to a discontinued operation, it may disclose its accounting policy for this election and describe its method of allocation.

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- Definition

Disclosure of accounting policy for reporting when there is a substantial doubt about an entity's ability to continue as a going concern for a reasonable period of time (generally a year from the balance sheet date). Disclose: (a) pertinent conditions and events giving rise to the assessment of substantial doubt about the entity's ability to continue as a going concern for a reasonable period of time, (b) the possible effects of such conditions and events, (c) management's evaluation of the significance of those conditions and events and any mitigating factors, (d) possible discontinuance of operations, (e) management's plans (including relevant prospective financial information), and (f) information about the recoverability or classification of recorded asset amounts or the amounts or classification of liabilities. If management's plans alleviate the substantial doubt about the entity's ability to continue as a going concern, disclosure of the principal conditions and events that initially raised the substantial doubt about the entity's ability to continue as a going concern would be expected to be considered. Disclose whether operations for the current or prior years generated sufficient cash to cover current obligations, whether waivers were obtained from creditors relating to the company's default under the provisions of debt agreements and possible effects of such conditions and events, such as: whether there is a possible need to obtain additional financing (debt or equity) or to liquidate certain holdings to offset future cash flow deficiencies. Disclose appropriate parent company information when parent is dependent upon remittances from subsidiaries to satisfy its obligations.

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