Document and Entity Information [Abstract] Document And Entity Information [Abstract] Document and Entity Information [Abstract] Statement [Table] Statement [Table] Statement [Line Items] Statement [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Trading Symbol Trading Symbol Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Statement Of Financial Position [Abstract] Statement of Financial Position [Abstract] Assets [Abstract] Assets Cash and Cash Equivalents, At Carrying Value Cash and cash equivalents Cash and cash equivalents, end of period Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash and cash equivalents, end of period Prepaid Expense, Current Prepaid contract research and manufacturing Prepaid Expense and Other Assets, Current Other prepaid expenses and other current assets Assets, Current Total current assets Total current assets Property, Plant and Equipment, Net Property and equipment, net Property, Plant and Equipment, Net Assets Total Assets Total Assets Liabilities and Equity [Abstract] Liabilities and Stockholders' Equity Accounts Payable, Current Accounts payable Accounts payable Employee-Related Liabilities, Current Accrued compensation and related expenses Accrued compensation and related expenses Restructuring Reserve Accrued restructuring Restructuring Liabilities as of December 31, 2012 Restructuring Liabilities as of March 31, 2013 Accrued restructuring Accrued Liabilities, Current Accrued contract research and manufacturing Accrued contract research and manufacturing Other Accrued Liabilities, Current Other accrued expenses Liabilities Total current liabilities Total liabilities Commitments and Contingencies Commitments Stockholders Equity Attributable To Parent [Abstract] Stockholders' equity: Preferred Stock, Value, Issued Preferred stock, $0.0001 par value, 5,000,000 shares authorized, no shares issued and outstanding Common Stock, Value, Issued Common stock, $0.0001 par value, 100,000,000 shares authorized, 67,075,779 shares issued and outstanding Additional Paid In Capital Additional paid-in capital Development Stage Enterprise, Deficit Accumulated During Development Stage Deficit accumulated during the development stage Deficit accumulated during the development stage Stockholders' Equity Attributable To Parent Total stockholders' equity Balance Balance Liabilities and Equity Total liabilities and stockholders' equity Total liabilities and stockholders' equity Preferred Stock, Par Or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, shares authorised Preferred stock, shares authorized Preferred Stock, Shares Issued Preferred stock, shares issued Preferred stock, shares issued Preferred Stock, Shares Outstanding Preferred stock, shares outstanding Preferred stock, shares outstanding Common Stock, Par Or Stated Value Per Share Common stock, par value (in dollars per share) Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding Common stock, shares outstanding Income Statement [Abstract] Income Statement [Abstract] Operating Expenses [Abstract] Operating expenses: Research and Development Expense Research and development Selling and Marketing Expense Sales and marketing General and Administrative Expense General and administrative Restructuring Charges Charges to the Reserve Restructuring Operating Expenses Total operating expenses Total operating expenses Operating Income (Loss) Operating loss Investment Income, Interest Interest income Interest Expense Interest expense Interest expense Net Income (Loss) Attributable To Parent Net loss Net loss Earnings Per Share, Basic and Diluted Net loss per basic and diluted share of common stock (in dollars per share) Weighted Average Number Of Shares Outstanding, Basic and Diluted Weighted average number of basic and diluted common shares outstanding (in shares) Statement Of Stockholders' Equity [Abstract] Consolidated Statements Of Changes In Stockholders' Equity [Abstract] Equity Components [Axis] Equity Components [Axis] Common Stock [Member] Additional Paid-In Capital [Member] Accumulated Deficit during Development Stage [Member] Deficit Accumulated During The Development Stage [Member] Equity Component [Domain] Equity Component [Domain] Equity Component [Domain] Shares, Issued Balance (in shares) Balance (in shares) Share-Based Compensation Non-cash stock-based compensation Stock-based compensation Share-based Compensation, Total Statement Of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Net Cash Provided by (Used in) Operating Activities [Abstract] Net Cash Provided By (Used In) Operating Activities [Abstract] Operating activities: Adjustments, Noncash Items, To Reconcile Net Income (Loss) To Cash Provided By (Used In) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Depreciation, Depletion and Amortization Depreciation and amortization Issuance Of Stock and Warrants For Services Or Claims Stock issued for license agreement Paid-In-Kind Interest Non-cash interest expense Gain (Loss) On Disposition Of Property Loss (gain) on disposition of assets Loss (gain) on disposition of fixed assets Fair Value Of Warrants For Finders Agreement Fair value of warrants for finder's agreement This represents the aggregate fair value of warrants issued to purchase common stock of the company pursuant to a Finder's Agreement entered into by the company for the sub-licensable license and right to certain intellectual property and proprietary information. Fair value of warrants for finder's fee Increase (Decrease) In Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) In Prepaid Expense and Other Assets Prepaid contract research and manufacturing expenses, other prepaid expenses and other assets Prepaid contract research and manufacturing expenses, other prepaid expenses and other assets Prepaid contract research and manufacturing expenses, other prepaid expenses and other assets Increase (Decrease) In Other Accrued Liabilities Accounts payable, accrued contract research and manufacturing expenses and other accrued expenses Increase (Decrease) In Employee Related Liabilities Accrued compensation and related expenses Accounts payable, accrued contract research and manufacturing expenses and other accrued expenses Increase (Decrease) In Restructuring Reserve Accrued restructuring Net Cash Provided By (Used In) Operating Activities Net cash used in operating activities Net cash used in operating activities Net Cash Provided By (Used In) Investing Activities [Abstract] Investing activities: Investing activities: Payments To Acquire Property, Plant, and Equipment Acquisitions of property and equipment Acquisitions of property and equipment Proceeds From Sale Of Productive Assets Proceeds from sale of assets Payments To Acquire Investments Purchases of short-term investments Puchases of short-term investments Payments For (Proceeds From) Investments Redemptions of short-term investments Redemptions and sales of short-term investments Net Cash Provided By (Used In) Investing Activities Net cash (used in) provided by investing activities Net cash provided by (used in) investing activities Net Cash Provided By (Used In) Financing Activities [Abstract] Financing activities: Proceeds From Contributions From Affiliates Proceeds from borrowings from affiliate Proceeds From Stock Options Exercised Proceeds from exercise of stock options Proceeds From Warrant Exercises Proceeds from exercise of common stock warrants Recapitalization Costs Recapitalization of the Company Recapitalization of the Company Proceeds From Issuance Or Sale Of Equity Proceeds from sales of equity securities, net of issuance costs Receipt Of Recovery Of Short Swing Profits Receipt of recovery of short-swing profits Receipt of recovery of short-swing profits. Receipt Of Cash For Stock Subscription Receivable Receipt of cash for stock subscription receivable Receipt of cash for stock subscription receivable. Net Cash Provided By (Used In) Financing Activities Net cash provided by financing activities Net cash provided by financing activities Cash and Cash Equivalents, Period Increase (Decrease) Net (decrease) increase in cash and cash equivalents Net (decrease) increase in cash and cash equivalents Net (decrease) increase in cash and cash equivalents Supplemental Cash Flow Information [Abstract] Supplemental disclosure of cash flow information: Supplemental disclosure of cash flow information: Interest Paid, Net Cash paid for interest Common Stock, Share Subscribed But Unissued, Subscriptions Receivable Common stock, subscription receivable Loans Payable Loans Interest Payable Accrued interest Debt Conversion, Converted Instrument, Shares Issued Common stock issued in conversion of loan Common Stock Issued In Lieu Of Repayment Of Loan Per Shares Common stock issued in lieu of repayment of loan, per share. Common Stock Issued In Lieu Of Repayment Of Loan Per Shares (in dollars per share) Noncash Or Part Noncash Acquisition, Noncash Financial Or Equity Instrument Consideration, Warrants Issued Warrants issued to purchase common stock Investment Warrants, Exercise Price Common stock warrants, purchase price Common stock warrants, purchase price (in dollars per share) Business Acquisition, Equity Interest Issued Or Issuable, Number Of Shares Common stock, issued in conjunction with merger and recapitalization Fair Value Of Warrants Granted Fair Value Of Warrants Granted Fair value of warrants granted. Warrants Outstanding Number Of Warrants This element represents that, the number of warrants outstanding as of balance sheet date. Warrants Unexercised And Outstanding Organization, Consolidation and Presentation Of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation Of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Fair Value Disclosures [Text Block] Fair Value Disclosures [Text Block] Disclosure Of Compensation Related Costs, Share-Based Payments [Abstract] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Disclosure Of Compensation Related Costs, Share-Based Payments [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Earnings Per Share [Text Block] Earnings Per Share [Text Block] Warrants and Rights Note Disclosure [Abstract] Warrants and Rights Note Disclosure [Abstract] Warrants For Common Stock [Text Block] It represents about warrants issued during the period number of warrants exercised and expired. Warrants For Common Stock [Text Block] Development Stage Enterprise, Additional Information For Statement Of Stockholders' Equity Disclosure [Abstract] Development Stage Enterprise, Additional Information for Statement of Stockholders' Equity Disclosure [Abstract] Common Stock Offerings [Text Block] Common Stock Offerings [Text Block] The entire disclosure of common stock offerings. Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Disclosure [Text Block] Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Restructuring and Related Activities Disclosure [Text Block] Restructuring and Related Activities Disclosure [Text Block] Subsequent Events [Abstract] Subsequent Events [Abstract] Subsequent Events [Text Block] Subsequent Events [Text Block] Accounting Policies [Abstract] Accounting Policies [Abstract] Basis Of Accounting, Policy [Policy Text Block] Basis of Accounting, Policy [Policy Text Block] Consolidation, Policy [Policy Text Block] Consolidation, Policy [Policy Text Block] Use Of Estimates, Policy [Policy Text Block] Use of Estimates, Policy [Policy Text Block] Research and Development Expense, Policy [Policy Text Block] Research and Development Expense, Policy [Policy Text Block] Disclosure Of Share-Based Compensation Arrangements By Share-Based Payment Award [Table Text Block] Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Schedule Of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule Of Employee Service Share-Based Compensation, Allocation Of Recognized Period Costs [Table Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule Of Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Vested and Expected To Vest, Outstanding [Table Text Block] Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding [Table Text Block] Schedule Of Restructuring and Related Costs [Table Text Block] Schedule of Restructuring and Related Costs [Table Text Block] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Contingently Issuable Shares [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Performance Commitments [Member] Noncontrolling Interest, Ownership Percentage By Parent Noncontrolling Interest, Ownership Percentage by Parent Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Net Of Forfeitures Options granted during period (in shares) Share-Based Compensation Arrangements By Share-Based Payment Award, Options, Grants In Period, Weighted Average Exercise Price Weighted average exercise price (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Weighted Average Grant Date Fair Value Weighted average grant date fair value (in dollars per share) Weighted average grant date fair value Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Weighted average risk-free interest rate Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Expected Term Expected life of options Weighted-average expected life of options Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected dividend yield Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Weighted average expected volatility Allocated Share-Based Compensation Expense Stock-based compensation expense recorded during period Employee Service Share-Based Compensation, Nonvested Awards, Total Compensation Cost Not Yet Recognized Total unrecognized compensation expense remaining Employee Service Share-Based Compensation, Nonvested Awards, Total Compensation Cost Not Yet Recognized, Period For Recognition Remaining average recognition period (in years) Award Type [Domain] Award Type [Domain] Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Additional Disclosures [Abstract] Options outstanding under the plan: Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Number Total options outstanding Activity/Balance, Balance at Beginning of period Activity/Balance, Balance at End of period Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted average remaining contractual life (in years) Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted average exercise price per share Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Vested and Expected To Vest, Outstanding, Number Total options outstanding and vested Share-Based Compensation Arrangement By Share-Based Payment Award, Number Of Shares Authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Share Based Compensation Arrangement By Share Based Payment Award Vesting Percentage Vesting percentage of shares issued under stock based compensation plan. Share Based Compensation Arrangement By Share Based Payment Award Vesting Percentage Share Based Compensation Arrangement Share Based Payment Award Unvested Options Forfeitures In Period The number of shares under unvested options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Share Based Compensation Arrangement Share Based Payment Award Unvested Options Forfeitures In Period Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Expirations In Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Antidilutive Securities Excluded From Computation Of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Class Of Warrant Or Right [Domain] Class of Warrant or Right [Domain] Aggregate Offering Price Of Shares To Be Issued It represents Aggregate price at which new shares are to be issued. Aggregate Offering Price Of Shares To Be Issued Stock Authorized Under Shelf Registration Statement The carrying amount of stock authorized to issue as of balance sheet date under shelf registration statement. Stock Authorized Under Shelf Registration Statement Proceeds From Issuance Of Common Stock Proceeds from Issuance of Common Stock Stock Issued During Period, Shares, New Issues Common stock issued during period, shares Common stock issued during period, shares Common stock issued during period, shares Payments Of Stock Issuance Costs Payments of Stock Issuance Costs Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Maximum [Member] License Agreement [Axis] License Agreement [Axis] License Agreement [Domain] License Agreement [Domain] License Agreement With Gopal Nair [Member] License Agreement With Dainippon Sumitomo Pharma [Member] Finders Agreement [Member] Facility Lease [Member] License Agreement [Member] Finite-Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Use Rights [Member] Investment Type [Axis] Investment Type [Axis] Investment Type Categorization [Domain] Investment Type Categorization [Domain] Investment Type Categorization [Domain] Warrant [Member] Development and Commercialization Agreement [Axis] Development And Commercialization Agreement [Axis] Development and Commercialization Agreement [Domain] Development And Commercialization Agreement [Domain] Development and Commercialization Agreement With Active Biotech [Member] Contract Research and Manufacturing Purchase Obligations [Axis] Contract Research and Manufacturing Purchase Obligations [Axis] Contract Research and Manufacturing Purchase Obligations [Domain] Contract Research and Manufacturing Purchase Obligations [Domain] Contract Research and Manufacturing Purchase Obligations [Member] Other Contractual Obligations [Axis] Other Contractual Obligations [Axis] Other Contractual Obligations [Domain] Other Contractual Obligations [Domain] Other Contractual Obligations [Member] Clinical Trial [Axis] Clinical Trial [Axis] Clinical Trial [Domain] Clinical Trial [Domain] It represents the clinical Trial items. Phase Iii Clinical Trial [Member] Phase III Clinical Trial [Member] Phase Ii Clinical Trial [Member] Phase II Clinical Trial [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Operating Leases, Rent Expense Operating Leases, Rent Expense Lease Expiration Date Lease Expiration Date Operating Leases, Future Minimum Payments Due Operating Leases, Future Minimum Payments Due Operating Leases, Frequency Of Periodic Payment Operating Leases, Frequency Of Periodic Payment Description of the frequency of periodic payments (monthly, quarterly, annual) under operating leases. Operating Leases, Periodic Payment Operating Leases, Periodic Payment Amount of the required periodic payments under operating leases. Percentage Of Increases In Annual Rent Percentage Of Increases In Annual Rent Disclosure of increases in annual rent of the lease. Security Deposit Security Deposit Initial Payment Towards Use Of Rights As Per License Agreement Initial Payment Towards Use Of Rights As Per License Agreement Initial payment towards use of rights as per license agreement. Value Of Common Stock Issued During Period Towards Milestone Payment Value Of Common Stock Issued During Period Towards Milestone Payment Value of common stock issued during period towards milestone payment. Common Stock Shares Issued During Period To Wards Milestone Payment Common Stock Shares Issued During Period To wards Milestone Payment Number of common stock, shares issued during period towards milestone payment. Fair Value Of Common Stock Issued During Period Towards Milestone Payment Fair Value Of Common Stock Issued During Period Towards Milestone Payment Fair value of common stock issued during period towards milestone payment. Milestone Payment Made During Period Milestone Payment Made During Period Milestone payments made during the period. Potential Future Milestone Payments Potential Future Milestone Payments Amount of potential future milestone payments. Common Stock Shares Issued During Period Towards Right To Use Intellectual Property Common Stock Shares Issued During Period Towards Right To Use Intellectual Property The value of common share issued during the period towards the use of intellectual property. Fair Value Of Common Stock Issued During Period Towards Right To Use Intellectual Property Fair Value Of Common Stock Issued During Period Towards Right To Use Intellectual Property The fair value of common stock issued during the period towards the use of intellectual property. Value Of Common Stock Issued During Period Towards Right To Use Intellectual Property Value Of Common Stock Issued During Period Towards Right To Use Intellectual Property The value of common stock issued during the period towards the use of intellectual property. Research and Development Expense (Excluding Acquired In Process Cost) Research and Development Expense (Excluding Acquired in Process Cost) Additional Research and Development Expense Additional Research And Development Expense The amount of additional research and development costs utilized in the period of acquisition. Purchase Commitment, Remaining Minimum Amount Committed Purchase Commitment, Remaining Minimum Amount Committed Decrease In Research and Development Expense Decrease In Research and Development Expense The element represents the decrease in research and development expenses during the period. Increase In Research and Development Expense Increase In Research and Development Expense The element represents the increase in research and development expenses taking into consideration anticipated cost of completion. Restructuring Type [Axis] Restructuring Type [Axis] Type Of Restructuring [Domain] Type of Restructuring [Domain] Employee Related Costs Severance and Salary Continuation [Member] Employee Related Costs Accrued Vacation At Separation [Member] Other Restructuring [Member] Restructuring Charges To Reserve Charges to the Reserve Amount of charges to the reserves against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations. Restructuring Reserve, Settled With Cash Cash Payments Cash Payments Restructuring Reserve, Accrual Adjustment Adjustments, Non-cash items and Changes to Estimates Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Grants In Period, Gross Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) Activity/Balance, Option grants Unexercised Warrants To Purchase Common Stock Expired It represents the number of unexercised warrants to purchase common stock which has been expired during the period. Equity Issuance, Per Share Amount Warrants Issued To Purchase Common Stock Shares Number of warrants issued to purchase common stock shares. Warrants Exercised During Period The number of share warrants exercised during the period Warrants Exercise Price Represents exercise price of warrants. Stock Issued During Period Shares Pursuant To Net Share Exercises Of Common Stock Warrants Stock issued during period shares pursuant to net-share exercises of common stock warrants. N D [Member] N D A [Member] Cash and Cash Equivalents, Fair Value Disclosure Subsequent Event, Date Share Based Compensation Arrangement By Share Based Payment Award In Money Options Outstanding Number Total in-the-money options outstanding The number of shares reserved for issuance under, in the money stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options. Share Based Compensation Arrangement By Share Based Payment Award In Money Options Outstanding Intrinsic Value Aggregate intrinsic value of in-the-money options outstanding Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of in the money options outstanding. Share Based Compensation Arrangement By Share Based Payment Award In Money Options Vested And Expected To Vest Outstanding Number Total in-the-money options outstanding and vested As of the balance sheet date, the number of shares into which fully vested and expected to vest in the money stock options outstanding can be converted under the option plan. Share Based Compensation Arrangement By Share Based Payment Award In Money Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value Aggregate intrinsic value of in-the-money options outstanding and vested Amount of difference between fair value of the underlying shares reserved for issuance and exercise prices of fully vested and expected to vest in the money options outstanding. Change Of Control Description This element represents description of change of control. Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date Scenario [Axis] Scenario, Unspecified [Domain] Restructuring Charges To Reserve Total Amount of charges to the reserves against earnings in the period for incurred and estimated total costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations. Payments for Restructuring Restructuring Reserve Accrual Adjustment Total Amount of any reversal and other adjustment made during the period to the amount of a previously accrued liability for a specified type of restructuring cost, excluding adjustments for costs incurred during the period, costs settled during the period, and foreign currency translation adjustments.