The carrying amount of accrued interest and late charges payable to lender.

No definition available.

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Namespace Prefix:	bnet_
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Balance Type:	credit
Period Type:	instant

- Definition

Duration of the amortization of principal.

+ References

No definition available.

+ Details

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Balance Type:	na
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- Definition

Duration of the required periodic payments of interest only.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
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- Definition

This element represents the carrying value of a short-term real estate loan to finance building costs. The funds are disbursed as needed or in accordance with a prearranged plan; generally, a portion of the funds is disbursed at inception and the remainder as construction progresses. The money is repaid on completion of the project, usually from the proceeds of a mortgage loan. The rate is normally higher than the prime rate, and there is usually an origination fee. The effective yield on these loans tends to be high, and the lender has a security interest in the real property. Note that there are separate concepts for the current and noncurrent portions of long-term construction loans.

+ References

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Amount of outstanding long-term debt or borrowing associated with any securities or credit agreement for which there has been a default in principal, interest, sinking fund, or redemption provisions, or any breach of covenant that existed at the end of the period and subsequently has not been cured.

+ 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.(c))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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Period Type:	instant

- Definition

Amount of the total principal payments made during the annual reporting period.

+ References

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

- Definition

The average effective interest rate during the reporting period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
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-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
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Balance Type:	debit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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-Publisher FASB
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-Topic 235
-SubTopic 10
-Section S99
-Paragraph 3
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-Topic 470
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-Paragraph 1
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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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- Definition

The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-SubTopic 10
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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- Details

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Note 5 - Loans Payable (Details Textual) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
Note 5 - Loans Payable (Details Textual) - USD ($)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2020	Sep. 25, 2014	Jan. 26, 2009
Construction Loan							$ 7,750,000
PA-1 [Member]
Debt Instrument, Debt Default, Amount	$ 8,137,117		$ 8,137,117			$ 8,137,117
Pennvest Loan [Member]
Construction Loan	9,727,189		9,727,189
Accrued Interest and Late Charges Payable	1,973,189		1,973,189
Line of Credit Facility, Maximum Borrowing Capacity	7,754,000		$ 7,754,000
Term Loan, Period for Interest Only Payments (Year)			3 years
Term Loan, Period for Amortization of Principal (Year)			10 years
Debt Instrument, Annual Principal Payment	5,067,000		$ 5,067,000
Long-Term Debt, Maturity, Year One	819,000		819,000
Long-Term Debt, Maturity, Year Two	846,000		846,000
Long-Term Debt, Maturity, Year Three	873,000		873,000
Long-Term Debt, Maturity, Year Four	149,000		149,000
Interest Expense, Debt, Total	61,722	$ 61,722	$ 123,444	$ 123,444
Pennvest Loan [Member] \| Years One Through Five [Member]
Debt Instrument, Interest Rate During Period			2.547%
Pennvest Loan [Member] \| Years Six Through Maturity [Member]
Debt Instrument, Interest Rate During Period			3.184%
Paycheck Protection Program CARES Act [Member]
Proceeds from Issuance of Unsecured Debt					$ 34,800
Unsecured Debt, Total	$ 35,026		$ 35,026