Organization and Business Collaboration Agreements Document and Entity Information Amendment Description Amendment Flag Current Fiscal Year End Date Document Period End Date Summary of Significant Accounting Policies Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities, Current Entity Public Float Entity Registrant Name Entity Central Index Key Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Document Type Accounts receivable Accounts Receivable, Net, Current Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Additional paid-in capital Additional Paid in Capital Amortization of deferred financing costs Amortization of Financing Costs and Discounts Current assets: Assets, Current [Abstract] Assets Assets [Abstract] Total current assets Assets, Current Total assets Assets Cash and cash equivalents Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash and Cash Equivalents, at Carrying Value Net change in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net cash used in financing activities from discontinued operations Cash Provided by (Used in) Financing Activities, Discontinued Operations Net cash provided by operating activities from discontinued operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Net cash provided by disposal of discontinued operations Cash Provided by (Used in) Investing Activities, Discontinued Operations Common stock, shares outstanding Common Stock, Shares, Outstanding Common stock, $0.001 par value-62,625,000 shares authorized at December 31, 2011 and March 31, 2012; 1,662,321 and 1,682,633 shares issued and outstanding at December 31, 2011 and March 31, 2012, respectively; Common Stock, Value, Issued Common stock, shares issued Common Stock, Shares, Issued Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Comprehensive loss: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Notes Payable Deferred financing costs, current Deferred Finance Costs, Current, Net Deferred financing costs, long-term Deferred Finance Costs, Noncurrent, Net Income tax benefit Deferred Income Tax Expense (Benefit) Deferred revenue, net of current portion Deferred Revenue, Noncurrent Deferred revenue Deferred Revenue, Current Depreciation and amortization Depreciation, Depletion and Amortization Basic Earnings Per Share, Basic [Abstract] Net loss (in dollars per share) Earnings Per Share, Diluted Diluted Earnings Per Share, Diluted [Abstract] Net loss (in dollars per share) Earnings Per Share, Basic Loss per common share: Earnings Per Share [Abstract] Gain on sale of property and equipment Gain (Loss) on Sale of Property Plant Equipment General and administrative General and Administrative Expense Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations, Net of Tax, Per Basic Share Consolidated Statements of Operations Loss from continuing operations Loss from continuing operations Income (Loss) from Continuing Operations Attributable to Parent Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations, Net of Tax, Per Diluted Share Continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Income tax benefit Income Tax Expense (Benefit) Other non-current liabilities Increase (Decrease) in Other Noncurrent Liabilities Deferred revenue Increase (Decrease) in Deferred Revenue Accounts receivable Increase (Decrease) in Accounts Receivable Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Interest payable Increase (Decrease) in Interest Payable, Net Purchased patents, net Intangible Assets, Net (Excluding Goodwill) Cash paid for interest-Discontinued operations Interest Paid, Discontinued Operations Cash paid for interest-Continuing operations Interest Paid Total current liabilities Liabilities, Current Current liabilities: Liabilities, Current [Abstract] Total liabilities Liabilities Liabilities and stockholders' equity (deficit) Liabilities and Equity [Abstract] Total liabilities and stockholders' equity Liabilities and Equity Marketable securities-restricted Marketable Securities, Restricted, Current Net cash used in operating activities from continuing operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Net cash used in investing activities from continuing operations Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net income (loss) attributable to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Net loss attributable to common stockholders Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Net Income (Loss) Available to Common Stockholders, Diluted Net cash provided by (used in) financing activities from continuing operations Net Cash Provided by (Used in) Financing Activities, Continuing Operations Cash flows from investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Net loss Net loss Net Income (Loss) Attributable to Parent Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Other income (expense): Nonoperating Income (Expense) [Abstract] Operating loss from continuing operations Operating Income (Loss) Basis of Presentation Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Other assets Other Assets, Noncurrent Other non-current liabilities Other Liabilities, Noncurrent Purchases of property and equipment, net Payments to Acquire Property, Plant, and Equipment Purchases of marketable securities Payments to Acquire Marketable Securities Series A convertible preferred stock, $0.001 par value-49,625,000 shares authorized at December 31, 2011 and March 31, 2012; 49,000,000 shares issued and outstanding at December 31, 2011 and March 31, 2012; aggregate liquidation preference of $69,520 and $70,378 at December 31, 2011 and March 31, 2012, respectively Preferred Stock, Value, Issued Series A convertible preferred stock, shares authorized Preferred Stock, Shares Authorized Series A convertible preferred stock, shares issued Preferred Stock, Shares Issued Cumulative dividends on Series A convertible preferred stock Preferred Stock Dividends and Other Adjustments Series A convertible preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Series A convertible preferred stock, aggregate liquidation preference (in dollars) Preferred Stock, Liquidation Preference, Value Series A convertible preferred stock, shares outstanding Preferred Stock, Shares Outstanding Prepaid expenses Prepaid Expense, Current Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Sales and maturities of marketable securities Proceeds from Sale and Maturity of Marketable Securities Property and equipment, net Property, Plant and Equipment, Net Related-Party Transaction Related Party Transactions Disclosure [Text Block] Related-Party Transaction Research and development Research and Development Expense Accumulated deficit Retained Earnings (Accumulated Deficit) Revenue Recognition, Milestone Method, Factors Revenues Revenues [Abstract] Royalty revenues Royalty Revenue Scenario, Unspecified [Domain] Stock-based compensation expense Share-based Compensation Statement [Table] Scenario [Axis] Statement Statement [Line Items] Consolidated Statements of Cash Flows Consolidated Balance Sheet Consolidated Statements of Comprehensive Loss Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Total stockholders' equity Stockholders' Equity Attributable to Parent Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Pro Forma [Member] Pro Forma Subsequent Events Subsequent Events [Text Block] Subsequent Events Nature of Operations [Text Block] Organization and Business Long-term Debt [Text Block] Notes Payable Collaborative Arrangement Disclosure [Text Block] Collaboration Agreements Employee-related Liabilities, Current Accrued compensation Interest Payable, Current Interest payable Derivative Liabilities, Noncurrent Warrant liability Defined Benefit Pension Plan, Liabilities, Noncurrent Supplemental executive retirement plan Conversion of Stock, Shares Converted Common stock automatically converted from Series A convertible preferred stock, shares Development and Milestone Revenue Development and milestone revenues Revenue earned during the period through collaboration and research and development agreements. These agreements include fees for development services provided to customers, payments for achievement of specified development, regulatory and sales milestones, and to a lesser extent, upfront license payments, which comprise an entity's development and milestone revenue. Revenue, Net Total revenues Costs and Expenses [Abstract] Costs and expenses Costs and Expenses Total costs and expenses Investment Income, Interest Interest income Other Nonoperating Income (Expense) Other Nonoperating Income (Expense) Total other income (expense) Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income (loss) from continuing operations before income tax benefit Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent [Abstract] Discontinued Operations: Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax Income (loss) from discontinued operations, net of tax Loss (income) from discontinued operations Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Loss from discontinued operations Loss from discontinued operations Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted-average number of common shares: Comprehensive Income (Loss), Net of Tax, Attributable to Parent Total comprehensive loss Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile loss from continuing operations to net cash used in operating activities: Unrealized Gain (Loss) on Derivatives Change in fair value of warrant liability Marketable Securities, Unrealized Gain (Loss), Excluding Other than Temporary Impairments Unrealized gain on marketable securities Increase (Decrease) in Accrued Interest Receivable, Net Interest receivable Proceeds from Secured Notes Payable Proceeds from issuance of secured notes payable Payments of Financing Costs Deferred financing costs Secured Debt, Current Secured notes payable, current Secured Long-term Debt, Noncurrent Secured notes payable, net of current portion Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Unrealized holding gains on marketable securities Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable and accrued expenses Interest expense Interest Expense Marketable Securities, Current Marketable Securities Defined Benefit Plan, Current Assets Marketable securities-restricted Prepaid expenses and other Prepaid Expense and Other Assets, Current Property and Equipment Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Concentration Risk Disclosure [Text Block] Management's Plans as to Continuing as a Going Concern Management's Plans as to Continuing as a Going Concern Purchased Patents Intangible Assets Disclosure [Text Block] Purchased Patents Repayment of secured notes payable Repayments of Secured Debt Earnings Per Share, Basic and Diluted [Abstract] Basic and Diluted Income (Loss) from Continuing Operations, Per Basic and Diluted Share Continuing operations (in dollars per share) Income (Loss) from Discontinued Operations, Net of Tax, Per Basic and Diluted Share Discontinued operations (in dollars per share) Earnings Per Share, Basic and Diluted Net loss (in dollars per share) Going Concern [Text Block] Management's Plans as to Continuing as a Going Concern The full disclosure for the going-concern plans.