This element represents the number of warrants or rights agreed to be sold to specified individuals.

No definition available.

Name:	bnet_ClassOfWarrantOrRightNumberAgreedToSell
Namespace Prefix:	bnet_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Purchase price per share or per unit of warrants or rights outstanding.

+ References

No definition available.

+ Details

Name:	bnet_ClassOfWarrantOrRightPurchasePriceOfWarrantsOrRightsPerShare
Namespace Prefix:	bnet_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of deferred compensation that has been converted into Note Payable Affiliate

+ References

No definition available.

+ Details

Name:	bnet_ConversionOfDeferredCompensationIntoNotePayableAffiliate
Namespace Prefix:	bnet_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the conversion price on a per Unit basis of convertible debt instruments.

+ References

No definition available.

+ Details

Name:	bnet_ConversionPricePerUnit
Namespace Prefix:	bnet_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the amount of convertible debt, belonging to a specified officer, sold to a shareholder during the period.

+ References

No definition available.

+ Details

Name:	bnet_ConvertibleDebtAmountSoldToAShareholderByAnOfficer
Namespace Prefix:	bnet_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Contractual interest rate for financing receivable, under the agreement.

+ References

No definition available.

+ Details

Name:	bnet_FinancingReceivableInterestRateStatedPercentage
Namespace Prefix:	bnet_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of the Company's shares per unit.

+ References

No definition available.

+ Details

Name:	bnet_NumberOfSharesPerUnit
Namespace Prefix:	bnet_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of warrants per unit.

+ References

No definition available.

+ Details

Name:	bnet_NumberOfWarrantsPerUnit
Namespace Prefix:	bnet_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the amount of secured promissory notes payable with warrants, as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	bnet_SecuredPromissoryNotesPayableWithWarrants
Namespace Prefix:	bnet_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Convertible Notes Payable, excluding current portion. Convertible Notes Payable is a written promise to pay a note which can be exchanged for a specified amount of another, related security, at the option of the issuer and the holder.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_ConvertibleLongTermNotesPayable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6-04(13))
-URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

+ Details

Name:	us-gaap_ConvertibleNotesPayable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of a favorable spread to a debt holder between the amount of debt being converted and the value of the securities received upon conversion. This is an embedded conversion feature of convertible debt issued that is in-the-money at the commitment date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644

+ Details

Name:	us-gaap_DebtInstrumentConvertibleBeneficialConversionFeature
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (210.5-03(11))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.9)
-URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260

+ Details

Name:	us-gaap_InterestExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_InterestReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=bnet_SecuredPromissoryNoteConsiderationForWarrantsExpiringOnDecember312025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=bnet_WarrantsPayableWithSecuredPromissoryNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_TitleOfIndividualAxis=srt_ChiefExecutiveOfficerMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_TitleOfIndividualAxis=srt_PresidentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bnet_January2015ConvertibleNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_ConvertibleDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_TitleOfIndividualAxis=bnet_ExecutiveViceChairmanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bnet_September2015ConvertibleNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_TitleOfIndividualAxis=bnet_ShareholderMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bnet_ReplacementNoteHeldAsCollateralMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bnet_June2019ConvertibleNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 7 - Convertible Notes Payable - Affiliates (Details Textual) - USD ($)	3 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Jun. 30, 2019	Dec. 31, 2017
Convertible Notes Payable, Noncurrent	$ 3,848,929		$ 3,801,168
Interest Expense, Total	117,602	$ 92,496
Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2025 [Member]
Financing Receivable, Interest Rate, Stated Percentage			4.00%
Warrants Payable With Secured Promissory Notes [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 0.60
Class of Warrant or Right, Purchase Price of Warrants or Rights, Per Share			$ 0.10
Chief Executive Officer [Member] \| Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2025 [Member]
Interest Receivable	13,940
Chief Executive Officer [Member] \| Warrants Payable With Secured Promissory Notes [Member]
Class of Warrant or Right, Number Agreed to Sell			3,000,000
President [Member] \| Secured Promissory Note, Consideration for Warrants Expiring on December 31, 2025 [Member]
Interest Receivable	$ 1,394
President [Member] \| Warrants Payable With Secured Promissory Notes [Member]
Class of Warrant or Right, Number Agreed to Sell			300,000
January 2015 Convertible Notes [Member] \| Chief Executive Officer [Member] \| Warrants Payable With Secured Promissory Notes [Member]
Secured Promissory Notes Payable with Warrants			$ 300,000
January 2015 Convertible Notes [Member] \| President [Member] \| Warrants Payable With Secured Promissory Notes [Member]
Secured Promissory Notes Payable with Warrants			$ 30,000
January 2015 Convertible Notes [Member] \| Convertible Debt [Member]
Debt Instrument, Interest Rate, Stated Percentage				4.00%
Number of Shares Per Unit			1
Number of Warrants Per Unit	0.5
Conversion Price Per Unit	$ 0.50
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 1
Debt Instrument, Convertible, Beneficial Conversion Feature	$ 0
Interest Expense, Total	40,517	26,248
January 2015 Convertible Notes [Member] \| Convertible Debt [Member] \| Chief Executive Officer [Member]
Convertible Notes Payable, Noncurrent	1,752,074	1,684,107
January 2015 Convertible Notes [Member] \| Convertible Debt [Member] \| President [Member]
Convertible Notes Payable, Noncurrent	909,870	874,534
January 2015 Convertible Notes [Member] \| Convertible Debt [Member] \| Executive Vice Chairman [Member]
Convertible Notes Payable, Noncurrent	450,103	435,002
September 2015 Convertible Notes [Member] \| Chief Executive Officer [Member]
Convertible Notes Payable, Total	161,385	155,707
September 2015 Convertible Notes [Member] \| President [Member]
Convertible Notes Payable, Total	19,043	18,389
September 2015 Convertible Notes [Member] \| Shareholder [Member]
Convertible Notes Payable, Total	404,185	388,734
September 2015 Convertible Notes [Member] \| Convertible Debt [Member]
Conversion Price Per Unit			$ 0.60
Debt Instrument, Convertible, Beneficial Conversion Feature			$ 0
Interest Expense, Total	5,366	$ 5,010
Replacement Note Held as Collateral [Member] \| Chief Executive Officer [Member]
Convertible Notes Payable, Total			130,000
Convertible Debt, Amount Sold to a Shareholder By an Officer			$ 300,000
2019 Convertible Notes [Member] \| Convertible Debt [Member] \| Chief Executive Officer [Member]
Debt Instrument, Interest Rate, Stated Percentage			4.00%
Number of Shares Per Unit			1
Number of Warrants Per Unit			0.5
Conversion Price Per Unit			$ 0.50
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 0.75
Debt Instrument, Convertible, Beneficial Conversion Feature			$ 0
Interest Expense, Total	1,877
Convertible Notes Payable, Total	$ 152,268
Conversion of Deferred Compensation into Note Payable Affiliate			$ 150,000