Document and Entity Information Statement [Table] Statement [Line Items] Statement New Jersey Tax Benefits Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Public Float Entity Shell Company Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus CONSOLIDATED BALANCE SHEETS Assets [Abstract] ASSETS Assets, Current [Abstract] Current Assets: Cash and Cash Equivalents, at Carrying Value Cash and Cash Equivalents at End of Period Cash and Cash Equivalents at Beginning of Period Cash and Cash Equivalents Available-for-sale Securities, Debt Securities, Current Marketable Securities Fair Value Accounts and Other Receivables, Net, Current Accounts and Other Receivables Accounts receivable Prepaid Expense and Other Assets, Current Prepaid and Other Current Assets Assets, Current Total Current Assets Property, Plant and Equipment, Net Property and Equipment, Net Property and Equipment, Net Intangible Assets, Net (Excluding Goodwill) Intangible Assets, Net Other Assets, Noncurrent Other Assets Goodwill Goodwill Assets Total Assets Liabilities and Equity [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities, Current [Abstract] Current Liabilities: Accounts Payable, Current Accounts Payable Accrued Liabilities, Current Accrued Expenses Accrued Expenses Other Liabilities, Current Less Current Portion Current Portion of Long-Term Liabilities Liabilities, Current Total Current Liabilities Other Liabilities, Noncurrent Other Long-Term Liabilities Long-Term Portion Liabilities Total Liabilities Commitments and Contingencies. Commitments and Contingent Liabilities (Notes 13 and 15) Stockholders' Equity Attributable to Parent [Abstract] Stockholders' Equity: Preferred Stock, Value, Issued Convertible Preferred Stock, $.01 Par Value; 3,000,000 Shares Authorized; No Shares Issued and Outstanding at September 30, 2018 and December 31, 2017 Common Stock, Value, Issued Common Stock, $.001 Par Value; 297,000,000 Shares Authorized; 11,957,635 and 9,234,693 Shares Issued and Outstanding at December 31, 2018 and 2017, Respectively Additional Paid in Capital, Common Stock Additional Paid-In Capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated Other Comprehensive Income Retained Earnings (Accumulated Deficit) Accumulated Deficit StockholdersEquity Period End Balance Period Start Balance Total Stockholders' Equity Liabilities and Equity Total Liabilities and Stockholders' Equity Preferred Stock, Par or Stated Value Per Share Convertible Preferred Stock, Par Value (in dollars per share) Preferred Stock, Shares Authorized Convertible Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Stock, Shares Issued Convertible Preferred Stock, Shares Issued Preferred Stock, Shares Outstanding Convertible 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, Shares Authorized Common Stock, Shares Authorized Common Stock, Shares, Issued Balance (in shares) Balance (in shares) Common Stock, Shares Issued Common Stock, Shares, Outstanding Common Stock, Shares Outstanding CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS Revenues [Abstract] REVENUES: Revenue from Contract with Customer, Excluding Assessed Tax Total Revenues Revenues Costs and Expenses [Abstract] OPERATING EXPENSES: Research and Development Expense Research and Development General and Administrative Expense General and Administrative Goodwill, Impairment Loss Goodwill asset impaired Goodwill Impairment Asset Impairment Charges Intangible Asset Impairment Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Gain (loss) on fair value remeasurement of contingent consideration Gain on Fair Value Remeasurement of Contingent Consideration Fair value adjustments included in operating expenses Amortization of Intangible Assets Amortization of Acquired Intangible Assets Amortization of Intangible Assets Costs and Expenses Total Operating Expenses Operating Income (Loss) Operating Loss Interest and Other Income Investment and Other Income, Net Investment and other income Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Net Loss Before Income Tax Benefit Pre-tax loss Income Tax Expense (Benefit) Income Tax Benefit Income Tax Benefit (Provision) Income tax expense (benefit) Income Tax (Benefit) Provision Non-Cash Income Tax Benefit Net Income (Loss) Available to Common Stockholders, Basic Net Loss Net Loss Net loss Earnings Per Share, Basic and Diluted Basic and Diluted Net Loss Per Common Share (in dollars per share) Basic and diluted net loss per common share (in dollars per share) Weighted Average Number of Shares Outstanding, Basic and Diluted Shares Used in Calculating Basic and Diluted Net Loss Per Share (in shares) Accumulated Other Comprehensive Income COMPREHENSIVE LOSS: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other Comprehensive Income (Loss): Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Unrealized Gain (Loss) on Marketable Securities Unrealized Gains on Marketable Securities Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive Loss STATEMENTS OF STOCKHOLDERS' EQUITY Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock Additional Paid In Capital [Member] Additional Paid-In Capital Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income Retained Earnings [Member] Accumulated Deficit Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Stock Issued During Period, Value, Employee Stock Purchase Plan Shares Issued under Stock Option and Employee Stock Purchase Plans Stock Issued During Period, Shares, Employee Stock Purchase Plans Shares Issued under Stock Option and Employee Stock Purchase Plans (in shares) Issued (in shares) Shares Issued In Connection With Cantor Agreement Shares Issued in Connection with Cantor Agreement Stock Issued During Period, Shares, Other Shares Issued in Connection with Cantor Agreement (in shares) Stock Issued During Period, Value, Acquisitions Shares Issued in Connection with the Kolltan Acquisition Stock Issued During Period, Shares, Acquisitions Shares Issued in Connection with the Kolltan Acquisition (in shares) Represents the value of shares issued to certain officers in lieu of cash payments Business Acquisition Stock Issued Value In Lieu Of Severance Shares Issued in Connection with Kolltan Severance Represents the number of shares issued to certain officers in lieu of cash payments Business Acquisition stock issued in lieu of severance Shares Issued in Connection with Kolltan Severance (in shares) Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Share-Based Compensation New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification Adoption of ASC 606 CONSOLIDATED STATEMENTS OF CASH FLOWS Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash Flows From Operating Activities: Adjustments 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 Depreciation and amortization expense Accretion (Amortization) of Discounts and Premiums, Investments Amortization and Premium of Marketable Securities, Net Gain (Loss) on Disposition of Property Plant Equipment Loss on Sale or Disposal of Assets Share-based Compensation Stock-Based Compensation Expense Amortization of Debt Discount (Premium) Non-Cash Expense Increase (Decrease) in Operating Capital [Abstract] Changes in Operating Assets and Liabilities: Increase (Decrease) in Accounts and Other Receivables Accounts and Other Receivables Increase (Decrease) in Prepaid Expense and Other Assets Prepaid and Other Current Assets Increase (Decrease) in Other Operating Assets Other Assets Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts Payable and Accrued Expenses Increase (Decrease) in Other Operating Liabilities Other Liabilities Net Cash Provided by (Used in) Operating Activities Net cash used in operations Net Cash Used in Operating Activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash Flows From Investing Activities: Proceeds from Sale and Maturity of Marketable Securities Sales and Maturities of Marketable Securities Payments to Acquire Marketable Securities Purchases of Marketable Securities Payments to Acquire Other Investments Investment in Other Cash Acquired from Acquisition Cash Acquired in Kolltan Acquisition, Net Payments to Acquire Property, Plant, and Equipment Acquisition of Property and Equipment Proceeds from Sale of Productive Assets Proceeds from Sale or Disposal of Assets Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net Cash Provided by Investing Activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash Flows From Financing Activities: Proceeds from Issuance of Common Stock Net proceeds from sale of common stock Net Proceeds from Stock Issuances Proceeds from Stock Plans Proceeds from Issuance of Stock from Employee Benefit Plans Net Cash Provided by (Used in) Financing Activities Net Cash Provided by Financing Activities Cash and Cash Equivalents, Period Increase (Decrease) Net Decrease in Cash and Cash Equivalents Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Non-cash Investing Activities Construction in Progress Expenditures Incurred but Not yet Paid Accrued construction in progress Supplemental Cash Flow Information [Abstract] Non-cash Supplemental Disclosure Represents the value of shares issued to certain executive for settlement in lieu of cash payments. Shares Issued To Former Kolltan Executive For Settlement of Severance Shares issued to former Kolltan executive for settlement of severance Represents the value of shares issued to kolltan acquisition in lieu of cash payments. Shares Issued In Connection With Kolltan Acquisition Shares issued in connection with Kolltan Acquisition Nature of Business and Overview Basis of Accounting [Text Block] Nature of Business and Overview Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Comprehensive Income (Loss) Note [Text Block] Accumulated Other Comprehensive Income Fair Value Measurements Fair Value Disclosures [Text Block] Fair Value Measurements Marketable Securities Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Marketable Securities Property and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Property and Equipment, Net Intangible Assets and Goodwill Goodwill and Intangible Assets Disclosure [Text Block] Intangible Assets and Goodwill Accrued Expenses Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Accrued Expenses Other Long-Term Liabilities Other Liabilities Disclosure [Text Block] Other Long-Term Liabilities Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Stockholders' Equity Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Stock-Based Compensation n/a Revenue. Revenue from Contract with Customer [Text Block] Revenue Collaboration Agreements Collaborative Arrangement Disclosure [Text Block] Collaboration Agreements Income Taxes Income Tax Disclosure [Text Block] Income Taxes Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Retirement Savings Plan Pension and Other Postretirement Benefits Disclosure [Text Block] Retirement Savings Plan Kolltan Acquisition Business Combination Disclosure [Text Block] Kolltan Acquisition Selected Quarterly Financial Data (Unaudited) Quarterly Financial Information [Text Block] Selected Quarterly Financial Data (Unaudited) Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Use of Estimates, Policy [Policy Text Block] Use of Estimates Cash and Cash Equivalents, Policy [Policy Text Block] Cash and Cash Equivalents Marketable Securities, Policy [Policy Text Block] Marketable Securities Concentration Risk, Credit Risk, Policy [Policy Text Block] Concentration of Credit Risk and of Significant Customers and Suppliers Fair Value Measurement, Policy [Policy Text Block] Fair Value Measurements Property, Plant and Equipment, Policy [Policy Text Block] Property and Equipment Disclosure of accounting policy for other assets in the preparation of financial statements in conformity with generally accepted accounting principles. Other Assets [Policy Text Block] Other Assets Business Combinations Policy [Policy Text Block] Business Combinations Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Intangible Assets Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Goodwill Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block] Impairment of Intangible and Long-Lived Assets Revenue Recognition, Policy [Policy Text Block] Revenue Recognition Disclosure of accounting policy for contract assets and liabilities. Contract Assets and Liabilities [Policy Text Block] Contract Assets and Liabilities Research and Development Expense, Policy [Policy Text Block] Research and Development Expenses Disclosure of accounting policy for patent costs. Patent Costs Policy [Text Block] Patent Costs Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Stock-Based Compensation Foreign Currency Transactions and Translations Policy [Policy Text Block] Foreign Currency Translation Income Tax, Policy [Policy Text Block] Income Taxes Comprehensive Income, Policy [Policy Text Block] Comprehensive Loss Earnings Per Share, Policy [Policy Text Block] Net Loss Per Share Disclosure of accounting policy pertaining to newly-adopted accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. Newly Adopted Accounting Pronouncements, Policy [Policy Text Block] Newly-Adopted Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Recent Accounting Pronouncements Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of potentially dilutive common shares that have not been included in the net loss per common share calculations because the effect would have been anti-dilutive Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Summary of changes in accumulated other comprehensive income Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of financial assets and liabilities subject to fair value measurements Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table Text Block] Schedule of the Company's contingent consideration liabilities measured at fair value using Level 3 inputs Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Summary of marketable securities, classified as available-for-sale Property, Plant and Equipment [Table Text Block] Schedule of property and equipment Schedule of Accrued Liabilities [Table Text Block] Schedule of accrued expenses Tabular disclosure of other long-term liabilities, not separately disclosed on the balance sheet. Schedule of Other Long Term Liabilities [Table Text Block] Schedule of other long-term liabilities