Cover [Abstract] Document Type Entity Interactive Data Current Amendment Flag Document Period End Date Document Fiscal Year Focus Document Fiscal Period Focus Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Current Reporting Status Entity Shell Company Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Common Stock, Shares Outstanding Entity Address, State or Province Statement of Financial Position [Abstract] Statement [Table] Statement [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Statement [Line Items] Statement [Line Items] Offering costs related to private equity offering Assets [Abstract] Assets Assets Total assets Assets, Current [Abstract] Current assets: Assets, Current Total current assets Cash and Cash Equivalents, at Carrying Value Cash Prepaid Expense, Current Prepaid expenses Prepaid Service Fees Current Prepaid service fees Prepaid service fees current. Restricted Cash, Current Restricted cash Miscellaneous Receivables Current Miscellaneous receivables Represents Miscellaneous Receivables Current. Intangible Assets, Net (Excluding Goodwill) Intangibles, net Carrying value of intangibles, net Property, Plant and Equipment, Net Property, plant and equipment Operating Lease, Right-of-Use Asset Operating lease right-of-use assets Liabilities and Equity [Abstract] Liabilities and Stockholders' (Deficit) Equity Commitments and Contingencies Commitments and Contingencies Liabilities Total liabilities Liabilities and Equity Total liabilities and stockholders' (deficit) equity Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Accrued License Fees Current Accrued license fees Accrued license fee Accrued license fees current. Convertible Notes Payable, Current Convertible notes payable, net Debt outstanding amount Employee-related Liabilities, Current Accrued liabilities and compensation Interest Payable, Current Accrued interest on convertible notes Liabilities, Current Total current liabilities Long Term Convertible Notes Payable Current Current portion of long term convertible notes payable Amount of current portion of long term convertible notes payable. Dividends Payable, Current Accrued dividends on Series C convertible preferred stock Accrued dividends Tender Offer Proceeds held In Trust Warrant tender offer proceeds held in trust Represents Warrant tender offer proceeds held in trust. Operating Lease, Liability, Current Current portion of operating leases payable Registered Direct Offer Proceeds Held In Trust Registered direct offer proceeds held in trust Registered direct offer proceeds held in trust. Liabilities, Noncurrent [Abstract] Long-term liabilities: Convertible Notes Payable, Noncurrent Convertible notes payable, net Derivative Liability, Noncurrent Derivative liability Liabilities, Noncurrent Total long-term liabilities Operating Lease, Liability, Noncurrent Operating lease liability Stockholders' Equity Attributable to Parent [Abstract] Stockholders' (Deficit) Equity Additional Paid in Capital Additional paid-in capital Common Stock, Value, Issued Common stock, $0.001 par value; 700,000,000 shares authorized, 399,156,340 and 329,554,763 issued and 398,997,329 and 329,395,752 outstanding at November 30, 2019 and May 31, 2019, respectively Preferred Stock, Value, Issued Preferred Stock Value Retained Earnings (Accumulated Deficit) Accumulated (deficit) Stockholders' Equity Attributable to Parent Total stockholders' (deficit) Beginning balance Ending balance Treasury Stock, Common, Value Less: treasury stock, at par (159,011 shares at $0.001) Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Series B Preferred Stock [Member] Series B Convertible Preferred Stock Series B Convertible Preferred Stock Series C Preferred Stock [Member] Series C Convertible Preferred Stock Series C Convertible Preferred Stock Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Treasury Stock [Member] Treasury Stock Common Stock, Par or Stated Value Per Share Common stock, par value Common stock per shares Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Issuance of common stock shares Common Stock, Shares, Outstanding Common stock, shares outstanding Preferred Stock, Par or Stated Value Per Share Preferred stock, par value Convertible preferred stock, par value Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Stock Shares authorized to be issued Preferred Stock, Shares Issued Preferred stock, shares issued Series C Convertible preferred stock, shares issued | shares Preferred Stock, Shares Outstanding Preferred stock, shares outstanding Preferred stock, shares outstanding Series B Convertible preferred stock, shares outstanding | shares Treasury Stock, Common, Shares Treasury stock, shares Income Statement [Abstract] Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Loss before income taxes Income (Loss) from Continuing Operations, Per Basic and Diluted Share Basic and diluted loss per share Income Tax Expense (Benefit) Income tax benefit Interest Expense [Abstract] Interest expense: Amortization of Debt Discount (Premium) Amortization of discount on convertible notes Amortization of discount on convertible notes Debt Related Commitment Fees and Debt Issuance Costs Amortization of debt issuance costs Interest Expense Total interest expense Interest Expense, Debt Interest on convertible note payable Interest expense Finance Charges Finance charges Finance charges. Gain (Loss) on Extinguishment of Debt Loss on extinguishment of convertible note Loss on extinguishment of convertible note Interest Related To Warrant Extensions And Debt Conversion Inducement interest - warrant exercises and debt conversion Inducement interest related to warrant exercise and debt conversion Interest related to warrant extensions and debt conversion. Net Income (Loss) Attributable to Parent Net loss Net loss Net loss Operating Expenses [Abstract] Operating expenses: Depreciation, Depletion and Amortization, Nonproduction Amortization and depreciation Amortization and depreciation Gain (Loss) on Derivative Instruments, Net, Pretax Change in fair value of derivative liabilities Change in fair value of derivative liabilities Change in fair value of derivative liability General and Administrative Expense General and administrative Investment Income, Interest Interest income Operating Expenses Total operating expenses Operating Income (Loss) Operating loss Research and Development Expense Research and development Weighted Average Number of Shares Outstanding, Basic and Diluted Basic and diluted weighted average common shares outstanding Statement of Cash Flows [Abstract] Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, beginning of period Cash, end of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Net change in cash Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Payments of Financing Costs Payment of offering costs Proceeds from Convertible Debt Proceeds from convertible note payable, net Net Proceeds Proceeds From Issuance Of Common Stock And Warrants Proceeds from sale of common stock and warrants Proceeds from issuance of common stock and warrants. Proceeds from Issuance of Preferred Stock and Preference Stock Proceeds from sale of preferred stock PaymentsforWarrantTenderOfferHeldInTrust Release of funds held in trust for warrant tender offer The cash outflow payments for warrant tender offer held in trust. Proceeds from Warrant Exercises Proceeds from warrant exercises Proceeds From Exercise Of Warrants Proceeds From Registered Direct Financing Held In Trust Proceeds from registered direct financing held in trust Proceeds from registered direct financing held in trust. Payments Of Principal On Maturity Of Short Term Convertible Notes Principal paid on maturity of short term convertible notes Payments Of Principal On Maturity Of Short Term Convertible Notes. Repayments of Notes Payable Convertible note redemptions paid in cash Notes Payable Repayment Redemptions Proceeds from Stock Options Exercised Exercise of option to repurchase shares held in escrow Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities Net cash used in investing activities Payments to Acquire Property, Plant, and Equipment Furniture and equipment purchases Net Cash Provided by (Used in) Operating Activities [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: Amortization of Debt Issuance Costs Amortization of debt issuance costs Increase (Decrease) in Operating Capital [Abstract] Changes in current assets and liabilities: Increase (Decrease) in Accounts Payable and Accrued Liabilities Increase in accounts payable and accrued expenses Increase (Decrease) in Prepaid Expense (Increase) decrease in prepaid expenses Increase Decrease In Miscellaneous Receivables (Increase) decrease in miscellaneous receivables Represents Increase Decrease In Miscellaneous Receivables. Share-based Compensation Stock-based compensation Compensation expense Deferred Income Tax Expense (Benefit) Deferred income tax benefit Interest expense associated with accretion of convertible notes payable Interest expense associated with accretion of convertible notes payable Interest expense related to accretion of convertible notes payable. Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Noncash Investing and Financing Items [Abstract] Non-cash investing and financing transactions: Accrued Interest To Convertible Note Payable Accrued interest converted into note payable Accrued interest to convertible note payable. Common Stock Issued For Acquisitions Common stock issued for acquisition of ProstaGene, LLC Common Stock Issued For Acquisitions Non cash Derivative Liability Associated With Convertible Note Payable Derivative liability associated a convertible note payable Noncash derivative liability associated with convertible note payable Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction Debt discount associated with convertible notes payable Conversion of Stock, Amount Issued Common stock issued for conversion redemption Accrued Dividends On Series C Convertible Preferred Stock Dividends accrued on Series C convertible preferred stock Represents Accrued Dividends On Series C Convertible Preferred Stock. Debt Conversion, Converted Instrument, Amount Conversion of interest and principal of short-term convertible notes to common stock Convertible note, redeemed amount Supplemental Cash Flow Information [Abstract] Supplemental disclosure of cash flow information: Interest Paid, Excluding Capitalized Interest, Operating Activities Cash paid during the period for interest Interest paid Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Statement of Stockholders' Equity [Abstract] Shares, Issued Beginning balance, shares Ending balance, shares Stock Issued During Period, Value, Acquisitions Acquisition of ProstaGene LLC Acquisition of ProstaGene LLC, value Acquisition of ProstaGene LLC,shares Acquisition of ProstaGene LLC, shares Adjustments To Additional Paid In Capital Offering Cost Related To Warrant Tender Offer Offering costs related to public warrant tender offers Adjustments to additional paid in capital offering cost related to warrant tender offer Stock Issued During Period, Value, Other Issuance of stock payment shares Issuance Of Common Stock In Private Stock Offering Value Proceeds from private equity offering Issuance Of Common Stock In Private Stock Offering Value Adjustments To Additional Paid In Capital Offering Cost Related To Private Offering Offering costs related to private equity offering Adjustments to additional paid in capital offering cost related to private offering Stock Issued During Period, Shares, Other Issuance of stock payment shares, shares Issuance Of Common Stock In Private Stock Offering Share Proceeds from private equity offering, shares Issuance Of Common Stock In Private Stock Offering Share Issuance Of Common Stock In Registered Direct Offering Shares Proceeds from registered direct offering, shares Issuance Of Common Stock In Registered Direct Offering Shares Issuance Of Common Stock In Registered Direct Offering Value Proceeds from registered direct offering Issuance Of Common Stock In Registered Direct Offering Value Stock Issue During Period Value Offering Costs Related To Registered Direct Offering Offering costs related to registered direct offering, value Stock Issue During Period Value Offering Costs Related To Registered Direct Offering Stock Issue During Period Share Offering Costs Related To Registered Direct Offering Offering costs related to registered direct offering, shares Stock Issue During Period Share Offering Costs Related To Registered Direct Offering Adjustments To Additional Paid In Capital Legal Fees In Connection With Equity Offering Legal fees in connection with equity offerings Adjustments to additional paid in capital legal fees in connection with equity offering Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Stock-based compensation Issuance of stock for note payable redemption Issuance of stock for note payable redemption Value of stock issued during period for notes payable. Issuance of stock for note payable redemption ,shares Issuance of stock for note payable redemption ,shares The number of stock issued during period for redemption of note payable. Adjustments to Additional Paid in Capital Offering Costs Related to Debt Offering Offering costs related to debt offering Amount of increase in additional paid in capital (APIC) resulting from offering costs related to debt offering. Adjustments to Additional Paid in Capital Debt Discount and Issuance Costs Related to Debt Offering Debt discount and issuance costs related to offering Amount of increase in additional paid in capital (APIC) resulting from debt discount and issuance costs related to debt offering. Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature Beneficial conversion feature on note payable and relative fair value associated with warrants Adjustments To Additional Paid In Capital Inducement Of Interest Expense On Warrant Exchange Inducement interest expense - public warrant tender offers Represents Adjustments To Additional Paid In Capital Inducement Of Interest Expense On Warrant Exchange. Stock Issued During Period Series C Convertible Stock Value Proceeds from Series C Convertible Preferred offering Represents Stock Issued During Period Series C Convertible Stock Value. Stock Issued During Period Series C Convertible Stock Shares Proceeds from Series C Convertible Preferred offering, shares Represents Stock Issued During Period Series C Convertible Stock Shares. Dividends On Series C Preferred Stock Dividends on Series C Convertible Preferred shares Represents Dividends On Series C Preferred Stock. Issuance Of Public Warrants Through Tender Offering Value Proceeds from public warrant tender offers Issuance of public warrants through tender offering value. Issuance Of Public Warrants Through Tender Offering Shares Proceeds from public warrant tender offers (shares) Issuance of public warrants through tender offering shares. Adjustments To Additional Paid In Capital Offering Cost Related To Series C Preferred Offering Offering costs related to Series C Preffered offering Adjustments to additional paid in capital offering cost related to series c preferred offering. Stock Issued During The Period Value Of Note Conversion And Extension Fees Note conversion and extension fees, Value Stock Issued During The Period Value Of Note Conversion And Extension Fees. Stock Issued During The Period Shares Note Conversion And Extension Fees Note conversion and extension fees, Shares Stock Issued During The Period Shares Note Conversion And Extension Fees. Stock Issued During Period, Value, Stock Options Exercised Exercise of option to repurchase common stock Adjustments To Additional Paid In Capital Inducement Of Debt Conversions Inducement interest expense - debt conversion Adjustments to additional paid in capital inducement of debt conversions. Preferred Stock [Member] Common Stock [Member] Common Stock Additional Paid-in Capital [Member] Accumulated Deficit Accumulated Deficit [Member] Exercise Price Range [Axis] Exercise Price Range [Axis] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] Scenario [Axis] Scenario [Axis] Scenario [Domain] Scenario, Unspecified [Domain] Fiscal Year To Date [Member] Fiscal Year To Date Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Organization Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Accounting Changes and Error Corrections [Abstract] Accounting Changes and Error Corrections [Text Block] Recent Accounting Pronouncements Debt Disclosure [Abstract] Debt Disclosure [Text Block] Convertible Instruments Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivative Liability Federal Home Loan Banks [Abstract] Stockholders' Equity Note Disclosure [Text Block] Stock Options and Warrants Business Combinations [Abstract]