Document And Entity Information Fair Value Measurement, Policy [Policy Text Block] Dividend yield Note To Financial Statement Details Textual Significant Accounting Policies Note 2 - Significant Accounting Policies Note 3 - Property and Equipment Risk-free interest rate Note 7 - Stockholders' Equity Note 2 - Significant Accounting Policies - Antidilutive Securities (Details) Note 2 - Significant Accounting Policies - Earnings Per Share, Basic and Diluted (Details) Note 3 - Property and Equipment - Property and Equipment (Details) Note 7 - Stockholders' Equity - Black-scholes Valuation Assumptions for Options (Details) Note 7 - Stockholders' Equity - Stock Options Activity (Details) Note 7 - Stockholders' Equity - Nonvested Share Activity (Details) Note 7 - Stockholders' Equity - Allocation of Recognized Period Costs (Details) Notes To Financial Statements Stock-based compensation us-gaap_ShareBasedCompensation Volatility Notes To Financial Statements [Abstract] Total current liabilities Title of Individual [Axis] Relationship to Entity [Domain] Expected term (years) (Year) Earnings Per Share, Policy [Policy Text Block] Revenue Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Operating expenses: Share-based Compensation, Stock Options, Activity [Table Text Block] Deferred compensation (Note 4) Deferred Compensation Liability, Current, Total Schedule of Nonvested Share Activity [Table Text Block] Depreciation expense Depreciation Depreciation, Total Series B Redeemable Convertible Preferred stock, $0.01 par value, 50,000 shares authorized; 200 shares issued and outstanding, liquidation preference of $34,500 and $34,000, respectively (Note 7) us-gaap_SharesIssuedPricePerShare Shares Issued, Price Per Share Exercisable, weighted-average exercise price (in dollars per share) us-gaap_AssetsCurrent Total current assets Exercisable, weighted-average remaining contractual life (Year) Exercisable, aggregate intrinsic value Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Stockholders' Equity Note Disclosure [Text Block] us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value Convertible notes payable - affiliates (Note 6) us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber Exercisable, options (in shares) us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest Total deficit Balances Balances Outstanding, weighted-average remaining contractual life (Year) Outstanding, aggregate intrinsic value Granted, weighted-average grant-date fair value (in dollars per share) Vested, weighted-average grant-date fair value (in dollars per share) us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue Nonvested, weighted-average grant-date fair value (in dollars per share) Nonvested, weighted-average grant-date fair value (in dollars per share) Modification of options This item represents the adjustment To additional paid in capital as a result of modification of options. us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares Vested (in shares) Common stock, no par value, 100,000,000 shares authorized, 26,996,148 and 25,939,892 shares issued, respectively; 26,291,839 and 25,235,583 shares outstanding, respectively us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares Nonvested (in shares) Nonvested (in shares) Adjustments to reconcile net loss to net cash used in operating activities: us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice Outstanding, weighted-average exercise price (in dollars per share) Outstanding, weighted-average exercise price (in dollars per share) Common stock, authorized (in shares) Forfeited, weighted-average exercise price (in dollars per share) Accounts payable and accrued expenses Common stock, issued (in shares) Shares issued – beginning of period (in shares) Expired, weighted-average exercise price (in dollars per share) Common stock, par value (in dollars per share) Granted, weighted-average exercise price (in dollars per share) bnet_MonthlyCompensationLifeInsurance Monthly Compensation, Life Insurance The amount of monthly compensation that will be applied to life insurance premiums. Exercised, weighted-average exercise price (in dollars per share) Modification of warrants This item represents the adjustment to additional paid in capital as a result of modification of warrants. Range [Domain] Maximum [Member] Minimum [Member] Weighted Average [Member] Stock Bonus [Member] This item represent bonuses given in stock. us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance Outstanding (in shares) Outstanding (in shares) us-gaap_CommonStockShareSubscribedButUnissuedSubscriptionsReceivable Subscription receivable - affiliates (Note 7) Range [Axis] us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod Expired, options (in shares) Preferred stock, liquidation Litigation Case [Axis] Litigation Case [Domain] Preferred stock Preferred stock, issued (in shares) Cash paid for interest us-gaap_PolicyTextBlockAbstract Accounting Policies Two Former Employees [Member] Information related to two former employees. Prepaid expenses Proceeds from sale of units Proceeds from the Sale of Units This item represents the cash inflow related to the sale of units. Property, Plant and Equipment Disclosure [Text Block] Property, Plant and Equipment [Table Text Block] Preferred stock, authorized (in shares) Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Change in fair value from modification of option terms Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Incremental Compensation Cost Loan payable and accrued interest (Note 5) Carrying value as of the balance sheet date of portion of long-term loans payable due within one year or the operating cycle if longer, including accrued interest and late charges. Non-cash investing and financing transactions: bnet_ModificationOfWarrants Modification of Warrants Represents the non-cash compensation expense recorded during the period related to the modification of warrants. us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Equity Issuances Warrants Policy [Policy Text Block] Disclosure of accounting policy for its outstanding warrants. us-gaap_PreferredStockRedemptionPricePerShare Preferred Stock, Redemption Price Per Share Minority Interest Policy [Policy Text Block] Disclosure of accounting policy for minority interests. Current liabilities: Weighted-average number of common shares outstanding: us-gaap_Assets Total assets us-gaap_PropertyPlantAndEquipmentUsefulLife Property, Plant and Equipment, Useful Life Plan Name [Axis] us-gaap_PreferredStockDividendRatePercentage Preferred Stock, Dividend Rate, Percentage Plan Name [Domain] bnet_AccruedInterestAndLateChargesPayable Accrued Interest and Late Charges Payable The carrying amount of accrued interest and late charges payable to lender. us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options Noncontrolling interest CASH FLOWS FROM OPERATING ACTIVITIES us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic Net loss applicable to Bion's common stockholders bnet_WorkingCapital Working Capital This item represents the capital available for operations for the Company. Subscriptions Receivable [Member] This item represents the subscriptions of shares that have not yet been fulfilled. Revenue Recognition, Policy [Policy Text Block] Statement [Line Items] Replacement Note Held as Collateral [Member] Information related to a replacement not that is being held by the Company as collateral for subscription receivable promissory note. Subscription Agreement [Member] This item represents transactions occurring related to one or more subscription agreements. bnet_DeferredCompensationAndAccountsPayableConvertedToUnitsShares Deferred Compensation and Accounts Payable Converted to Units, Shares Represents the number of the Company's units into which deferred compensation and accounts payable were converted during the period. bnet_DeferredCompensationConvertedToUnitsAmount Deferred Compensation, Converted to Units, Amount Represents the monetary amount of the Company's units into which deferred compensation was converted during the period. us-gaap_DebtDefaultLongtermDebtAmount Debt Instrument, Debt Default, Amount bnet_AccountsPayableConvertedToUnitsAmount Accounts Payable, Converted to Units, Amount Represents the monetary amount of the Company's accounts payable converted into units during the period. bnet_DeferredCompensationMaximumConvertibleAmount Deferred Compensation, Maximum Convertible Amount The maximum amount of deferred compensation that is deemed to be convertible. Additional paid-in capital Warrants Related to the Conversion of Deferred Compensation and Accounts Payable into Units [Member] Represents information pertaining to warrants related to the conversion of deferred compensation and accounts payable into units. Executive Vice Chairman and Other Board Member [Member] Information related to the executive vice chairman and other board member. us-gaap_LossContingencyDamagesSoughtValue Loss Contingency, Damages Sought, Value Centerpoint [Member] This item represents the separate legal entity of Centerpoint. Disclosure of Compensation Related Costs, Share-based Payments [Text Block] bnet_DeferredCompensationStockConversionPricePerShare Deferred Compensation, Stock Conversion, Price Per Share The price per share in which an individual can convert their deferred compensation. Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Property, Plant and Equipment, Policy [Policy Text Block] Property, Plant and Equipment, Type [Axis] us-gaap_NonoperatingIncomeExpense Total other expense Property, Plant and Equipment, Type [Domain] Equity Award [Domain] Convertible Preferred Stock Antidilutive Securities [Member] This item represents the convertible preferred stock securities that have been excluded from the computation of earnings per share. bnet_ClassOfWarrantOrRightIssuedDuringPeriod Class of Warrant or Right, Issued During Period The number of warrants or rights issued during period. Current assets: Award Type [Axis] CEO, President, and Executive Vice Chairman [Member] Represents the CEO, President, and Executive Vice Chairman of the company. Restricted Stock [Member] us-gaap_NetCashProvidedByUsedInFinancingActivities Net cash provided by financing activities us-gaap_NetIncomeLossAttributableToNoncontrollingInterest Net loss attributable to the noncontrolling interest us-gaap_Liabilities Total liabilities Sale of Stock [Axis] Sale of Stock [Domain] Convertible Debt Securities [Member] us-gaap_OperatingIncomeLoss Loss from operations Employee Stock Option [Member] us-gaap_NetCashProvidedByUsedInOperatingActivities Net cash used in operating activities Warrant [Member] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease Net increase (decrease) in cash Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Derivatives, Policy [Policy Text Block] bnet_TermLoanPeriodForAmortizationOfPrincipal Term Loan, Period for Amortization of Principal Duration of the amortization of principal. Commitments and Contingencies Disclosure [Text Block] us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment Less accumulated depreciation Property and equipment, net (Note 3) Property, Plant and Equipment, Net, Ending Balance Net bnet_ProceedsFromSaleOfUnitsNetOfCommissions Proceeds from Sale of Units, Net of Commissions Represents the cash influx as a result of proceeds from the sale of units during the period, net of commissions us-gaap_PropertyPlantAndEquipmentGross Total Change in fair value from modification of warrant terms The amount of change in fair value of share-based payment awards due to modifications in warrants terms. us-gaap_MachineryAndEquipmentGross Machinery and equipment us-gaap_PaymentsOfStockIssuanceCosts Payments of Stock Issuance Costs Commissions on sale of units Concentration Risk, Credit Risk, Policy [Policy Text Block] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] us-gaap_BuildingsAndImprovementsGross Buildings and structures bnet_DeferredCompensationLiabilityAmountCancelled Deferred Compensation Liability, Amount Cancelled The amount of deferred compensation liability cancelled during the period. us-gaap_EquityMethodInvestmentOwnershipPercentage Equity Method Investment, Ownership Percentage Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Net loss Noncontrolling Interest [Member] us-gaap_ProceedsFromIssuanceOrSaleOfEquity Proceeds from Issuance or Sale of Equity, Total Increase in deferred compensation Retained Earnings [Member] us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty Related Party Transaction, Expenses from Transactions with Related Party Convertible Debt [Member] bnet_StockIssuedDuringPeriodValueCommissionsOnSaleOfUnits Commissions on sale of units Represents the value of stock issued during the period for commissions on sale of units. bnet_FinancingReceivableInterestRateStatedPercentage Financing Receivable, Interest Rate, Stated Percentage Contractual interest rate for financing receivable, under the agreement. Shares issued for warrant exercise commissions Shares Issued for Warrant Exercise Commissions Represents the shares issued for warrant exercise commissions included in noncash investing and financing items. (Decrease) increase in accounts payable and accrued expenses Commissions on sale of units (in shares) Stock Issued During Period, Shares, CommissionsOnSaleOfUnits Represents the number of shares issued during the period for commissions on sale of units. Purchase of warrants for subscription receivable - affiliates Amount of subscription receivable from investors who have been allocated warrants. Additional Paid-in Capital [Member] Common Stock [Member] Related Party Transactions Disclosure [Text Block] Preferred Stock [Member] Shareholder [Member] Related to a certain shareholder. Equity Components [Axis] Equity Component [Domain] bnet_DeferredCompensationLoanPayableAndAccountsPayableConvertedToUnitsPricePerUnit Deferred Compensation, Loan Payable, and Accounts Payable Converted to Units, Price Per Unit Represents the price per unit of deferred compensation, loan payable and accounts payable converted to units. bnet_SharesHeldBySubsidiaries Shares Held by Subsidiaries Shares held by subsidiaries (Note 7) (in shares) Number of shares held by subsidiaries. us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 Class of Warrant or Right, Exercise Price of Warrants or Rights Deficit: Class of Warrant or Right [Axis] bnet_AnnualSalary Annual Salary The amount of annual salary earned by a certain employee. Class of Warrant or Right [Domain] bnet_SecuredPromissoryNotesPayableWithWarrants Secured Promissory Notes Payable with Warrants Represents the amount of secured promissory notes payable with warrants, as of the balance sheet date. us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight Class of Warrant or Right, Number of Securities Called by Each Warrant or Right Warrants Payable With Secured Promissory Notes [Member] Represents information pertaining to warrants payable with secured promissory notes. bnet_ClassOfWarrantOrRightNumberAgreedToSell Class of Warrant or Right, Number Agreed to Sell This element represents the number of warrants or rights agreed to be sold to specified individuals. bnet_ComputersAndOfficeEquipmentGross Computers and office equipment This item represents the gross amount computers and office equipment held by the Company. us-gaap_ClassOfWarrantOrRightOutstanding Class of Warrant or Right, Outstanding Conversion of debt and liabilities The amount of debt and liabilities that has been converted during the period. us-gaap_ConvertibleNotesPayable Convertible Notes Payable, Total bnet_ConvertibleDebtAmountSoldToAShareholderByAnOfficer Convertible Debt, Amount Sold to a Shareholder By an Officer Represents the amount of convertible debt, belonging to a specified officer, sold to a shareholder during the period. us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights Class of Warrant or Right, Number of Securities Called by Warrants or Rights us-gaap_OperatingExpenses Total operating expenses bnet_InterestRateOnDeferredCompensation Interest Rate on Deferred Compensation This item represents the interest rate that is accrued on deferred compensation. General and administrative (including stock-based compensation (Note 7)) Cash Cash at beginning of period Cash at end of period Allocated Share-based Compensation Expense Allocated Share-based Compensation Expense, Total us-gaap_RepaymentsOfLongTermDebt Repayments of Long-term Debt, Total Warrants Expiring on December 31, 2023 [Member] Represents information pertaining to warrants expiring on December 31, 2023. Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2023 [Member] Information concerning the secured promissory note that was received as consideration toward warrants that expire on December 31, 2023. Warrants Expiring on December 31, 2025 [Member] Represents information concerning warrants that expire on December 31, 2025. us-gaap_DebtInstrumentConvertibleBeneficialConversionFeature Debt Instrument, Convertible, Beneficial Conversion Feature Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2025 [Member] Information concerning the secured promissory note that was received as consideration toward the Bassani Warrants that expire on December 31, 2025. bnet_ClassOfWarrantOrRightNumberForWhichExpirationDateExtended Class of Warrant or Right, Number for Which Expiration Date Extended Represents the number of warrants or rights for which the expiration date was extended during the period. bnet_ClassOfWarrantOrRightIssuedDuringThePeriodValueIssuedForExpenses Class of Warrant or Right, Issued During the Period, Value Issued for Expenses Represents the value of warrants or rights issued during the period in exchange for services expensed. Cash and Cash Equivalents, Policy [Policy Text Block] bnet_DeferredCompensationConvertibleToCommonStockPricePerShare Deferred Compensation, Convertible to Common Stock, Price Per Share Represents the price per share at which the deferred compensation liability is convertible to shares of the entity's common stock as of the balance sheet date. bnet_DeferredCompensationConvertibleToCommonStock Deferred Compensation, Convertible to Common Stock Represents the amount of deferred compensation liability convertible to shares of the entity's common stock as of the balance sheet date. bnet_InterestExpenseRelatedToTheModificationOfWarrants Interest Expense Related to the Modification of Warrants Represents the amount of interest expense recorded during the period in connection with the modification of warrants. Amendment Flag General and Administrative Expense [Member] Accounting Policies [Abstract] Significant Accounting Policies [Text Block] Other expense: Use of Estimates, Policy [Policy Text Block] New Accounting Pronouncements, Policy [Policy Text Block] Sale of units Sale of Units, Value Represents the equity impact of units issued during the period. Sale of units (in shares) Sale of Units, Number Of Units Issued Number of units issued pursuant to a subscription agreement. us-gaap_ConstructionLoan Construction Loan us-gaap_SharesOutstanding Balances (in shares) Balances (in shares) Common stock, outstanding (in shares) Shares outstanding – beginning of period (in shares) Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding, Ending Balance Proceeds from loans payable - affiliates us-gaap_DebtInstrumentInterestRateDuringPeriod Debt Instrument, Interest Rate During Period Current Fiscal Year End Date us-gaap_DebtInstrumentInterestRateStatedPercentage Debt Instrument, Interest Rate, Stated Percentage us-gaap_NotesReceivableNet Financing Receivable, Net, Total Receivable Type [Axis] Receivable [Domain] Research and Development Expense [Member] February 2018 Extension Agreement [Member] Related to the February 2018 extension agreement. Document Fiscal Period Focus Document Fiscal Year Focus Consolidation, Policy [Policy Text Block] bnet_NoteReceivableCollateral Note Receivable, Collateral The amount of collateral applied to secure a note receivable. Document Period End Date Income Statement Location [Axis] us-gaap_IncreaseDecreaseInPrepaidExpense (Increase) decrease in prepaid expenses Income Statement Location [Domain] Entity Emerging Growth Company Document Type Interim Period, Costs Not Allocable [Domain] bnet_WarrantComponentOfEquityUnitNumberOfSharesOfRestrictedCommonStockCalledByEachWarrant Warrant Component of Equity Unit, Number of Shares of Restricted Common Stock Called by Each Warrant With regard to equity units which include one or more warrants as part of the corporate unit, this element represents the number of shares of restricted common stock that may be purchased by each warrant. Entity Small Business bnet_ExtensionOfExercisePeriod Extension of Exercise Period Extension of exercise period for applicable options and warrants. Document Information [Line Items] us-gaap_DividendsPreferredStock Dividends, Preferred Stock, Total bnet_Contingentstockbonuspercentagethresholdforissuance ContingentStockBonusPercentageThresholdForIssuance Contingent Stock Bonus, Percentage Threshold for Issuance. Document Information [Table] Nature of Expense [Axis] FY2016 Extension Agreement [Member] bnet_ExtensionOfExercisePeriodAnnualPaymentPerOptionOrWarrant Extension of Exercise Period Annual Payment per Option or Warrant Represents the annual payment per option or warrant to be paid to the Company by certain individuals should they choose to exercise the right to extend the exercise period of all or part of the applicable options and warrants. Coalition for Affordable Bay Solutions [Member] Represents the Coalition for Affordable Bay Solutions. Entity Filer Category Debt Instrument [Axis] Extension Bonus [Member] bnet_RelatedPartyTransactionReimbursements Related Party Transaction, Reimbursements The amount of reimbursements received from a related party for prior contributions. Entity Current Reporting Status Debt Instrument, Name [Domain] bnet_RelatedPartyTransactionContributions Related Party Transaction, Contributions The amount of contributions to a related party. us-gaap_CapitalRequiredForCapitalAdequacy Capital Required for Capital Adequacy bnet_MonthlyOfficersCashCompensation Monthly Officers' Cash Compensation Represents information about monthly officers' cash compensation. us-gaap_AdjustmentsToAdditionalPaidInCapitalOther Adjustments to Additional Paid in Capital, Other Basic and diluted (in shares) us-gaap_ImpairmentOfLongLivedAssetsHeldForUse Impairment of Long-Lived Assets Held-for-use us-gaap_SharePrice Share Price bnet_WarrantFairValuePricePerShare Warrant Fair Value Price Per Share Price per share of warrant, based upon fair value. Issuance of warrants Adjustments to Additional Paid in Capital, Warrant Issued us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount Antidilutive securities (in shares) Vesting of options for services Interest Expense on Deferred Compensation Obligation [Member] This item represents the obligation accrued for interest expense of deferred compensation. bnet_PreferredStockConvertibleOptionPerShare Preferred Stock, Convertible Option Per Share The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is convertible to an option. Net loss applicable to Bion's common stockholders per basic and diluted common share (in dollars per share) Entity Central Index Key Entity Registrant Name Entity [Domain] Legal Entity [Axis] Statement [Table] Scenario [Axis] Statement of Financial Position [Abstract] Scenario, Unspecified [Domain] Basic weighted average shares – end of period (in shares) Supplemental disclosure of cash flow information: Statement of Cash Flows [Abstract] Entity Common Stock, Shares Outstanding (in shares) Statement of Stockholders' Equity [Abstract] Income Statement [Abstract] us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree Long-term Debt, Maturities, Repayments of Principal in Year Three us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour Long-term Debt, Maturities, Repayments of Principal in Year Four us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive Long-term Debt, Maturities, Repayments of Principal in Year Five us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive Long-term Debt, Maturities, Repayments of Principal after Year Five us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo Long-term Debt, Maturities, Repayments of Principal in Year Two Trading Symbol Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities Conversion of debt and liabilities us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities Conversion of debt and liabilities (in shares) President [Member] Exercised, options (in shares) us-gaap_TableTextBlock Notes Tables Pennvest Loan [Member] This item represents the Pennvest Loan. us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity Line of Credit Facility, Maximum Borrowing Capacity Consultant [Member] Represents information pertaining to a consultant. Years One Through Five [Member] This item represents events that will occur during years one through five. Chief Executive Officer [Member] Years Six Through Maturity [Member] This item represents events that occur during years six through loan maturity. Chief Financial Officer [Member] Related Party [Axis] Related Party [Domain] Convertible Debt [Text Block] The entire disclosure for convertible debt. PA-1 [Member] Depicts the subsidiary PA-1. Property, Plant and Equipment of PA1 [Member] Represents the Property, Plant and Equipment of PA1. CEO and President [Member] This item represents transactions between the Company and the CEO and President. Weighted average shares issued during the period (in shares) Represents the weighted average number of additional shares issued during period. Granted, options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross CASH FLOWS FROM FINANCING ACTIVITIES Forfeited, options (in shares) us-gaap_DividendsPayableCurrentAndNoncurrent Dividends Payable us-gaap_StockIssuedDuringPeriodSharesNewIssues Stock Issued During Period, Shares, New Issues Issuance of common stock for services Stock Issued During Period, Value, Issued for Services September 2015 Convertible Notes [Member] Represents information about the September 2015 convertible notes. Issuance of common stock for services (in shares) Stock Issued During Period, Shares, Issued for Services bnet_DeferredCompensationConversionDays Deferred Compensation Conversion Days Number of specified trading days during the end of a month for which the share price of common stock during that period will be applied to deferred compensation if converted. us-gaap_LiabilitiesAndStockholdersEquity Total liabilities and deficit Executive Vice Chairman [Member] Represents the Executive Vice Chairman. bnet_ClassOfWarrantOrRightPurchasePriceOfWarrantsOrRightsPerShare Class of Warrant or Right, Purchase Price of Warrants or Rights, Per Share Purchase price per share or per unit of warrants or rights outstanding. bnet_DeferredCompensationConsecutiveTradingDays Deferred Compensation Consecutive Trading Days Number of specified trading days during the end of a month for which the share price of common stock during that period will be applied to deferred compensation if converted. bnet_ExecutionBonusAsPercentageOfExercisedOptionsAndWarrants Execution Bonus as Percentage of Exercised Options and Warrants This item represents the percentage of exercised options and warrants that have been granted as execution/exercise bonuses. bnet_DeferredCompensationSharesIssuedUponConversion Deferred Compensation Shares Issued upon Conversion Number of shares issued upon the conversion of deferred compensation. Exercise Bonus [Member] This item represents the exercise bonus. Consultants [Member] Consultants of the Company. Series C Preferred Stock [Member] Individual Employee [Member] Represents individual employee. Research and development (including stock-based compensation (Note 7)) Accumulated deficit Former Employee [Member] Represents former employee. Series A Preferred Stock [Member] Series B Preferred Stock [Member] bnet_TermLoanPeriodForInterestOnlyPayments Term Loan, Period for Interest Only Payments Duration of the required periodic payments of interest only. Debt Disclosure [Text Block] Interest expense Interest Expense, Total us-gaap_InterestExpenseDebt Interest Expense, Debt, Total Total Bion’s stockholders’ deficit Stockholders' Equity Attributable to Parent, Ending Balance us-gaap_DisclosureTextBlockAbstract Notes to Financial Statements Accrued interest on loan payable, deferred compensation and other us-gaap_InterestExpenseRelatedParty Interest Expense, Related Party Subsequent Event [Member] Class of Stock [Axis] Class of Stock [Domain] bnet_NumberOfWarrantsPerUnit Number of Warrants Per Unit The number of warrants per unit. bnet_NumberOfSharesPerUnit Number of Shares Per Unit Represents the number of the Company's shares per unit. January 2015 Convertible Notes [Member] Represents information pertaining to the January 2015 Convertible Notes. Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] bnet_ConversionPricePerUnit Conversion Price Per Unit Represents the conversion price on a per Unit basis of convertible debt instruments. bnet_CommonStockVotingRightsVotesPerShare Common Stock Voting Rights Votes Per Share Voting rights per share of common stock. Subsequent Event Type [Axis] bnet_ConvertiblePreferredStockRedemptionPeriod Convertible Preferred Stock Redemption Period Redemption period of convertible preferred stock. Subsequent Event Type [Domain] bnet_WeightedAverageRemainingContractualLifeForOutstandingWarrants Weighted Average Remaining Contractual Life for Outstanding Warrants Represents weighted average remaining contractual life for outstanding warrants. bnet_WeightedAverageExercisePriceForOutstandingWarrants Weighted Average Exercise Price for Outstanding Warrants Represents weighted average exercise price for outstanding warrants. Subsequent Events [Text Block] Employees and Consultants [Member] Represents information pertaining to employees and consultants of the Company. us-gaap_ConvertibleLongTermNotesPayable Convertible Notes Payable, Noncurrent Expired [Member] Represents expired warrants in a given period. Deposits and other receivables