Percentage points added to the interest rate in case of debt instrument defaulted.

No definition available.

Name:	inbp_DebtInstrumentDebtDefaultInterestRateBasicSpread
Namespace Prefix:	inbp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of appraised net orderly liquidation value of eligible inventory that used to calculate the aggregate amount of revolving advances that can be made to the company.

+ References

No definition available.

+ Details

Name:	inbp_LineOfCreditFacilityCovenantAggregateRevolvingAdvanceAppraisedLiquidationValueInventoryAdvanceRate
Namespace Prefix:	inbp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The inventory advance rate used to calculate the aggregate amount of revolving advances that can be made to the company.

+ References

No definition available.

+ Details

Name:	inbp_LineOfCreditFacilityCovenantAggregateRevolvingAdvanceInventoryAdvancerate
Namespace Prefix:	inbp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The maximum percentage of eligible accounts receivable used to calculate the aggregate amount of revolving advances that can be made to the company.

+ References

No definition available.

+ Details

Name:	inbp_LineOfCreditFacilityCovenantAggregateRevolvingAdvanceReceivablesAdvancerate
Namespace Prefix:	inbp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The maximum amount of aggregate revolving advances that can be made under the credit facility.

+ References

No definition available.

+ Details

Name:	inbp_LineOfCreditFacilityCovenantMaximumAggregateRevolvingadvance
Namespace Prefix:	inbp_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

The prepayment requirement as a percentage of excess cashflow for each fiscal year.

+ References

No definition available.

+ Details

Name:	inbp_LineOfCreditFacilityCovenantPrepaymentProvisionsPercentageOfExcessCashflow
Namespace Prefix:	inbp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of consecutive monthly payments for a term loan.

+ References

No definition available.

+ Details

Name:	inbp_NumberOfConsecutiveMonthlyInstallments
Namespace Prefix:	inbp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of consecutive monthly installments that have a fixed amount.

+ References

No definition available.

+ Details

Name:	inbp_NumberOfConsecutiveMonthlyInstallmentsFixedAmount
Namespace Prefix:	inbp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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

- Definition

Amount of the required periodic payments including both interest and principal payments.

+ 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=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823

+ Details

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

- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

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

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

- Definition

The cash inflow from a borrowing supported by a written promise to pay an obligation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

+ Details

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

- Definition

The cash inflow associated with the sale, maturity and collection of all investments such as debt, security and so forth during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromSaleMaturityAndCollectionsOfInvestments
Namespace Prefix:	us-gaap_
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 Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16(a))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 2: 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=120398452&loc=d3e534808-122878

+ Details

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

- Details

Name:	us-gaap_FinancialInstrumentAxis=inbp_iBioStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

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

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_EurodollarMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

Note 4 - Senior Credit Facility and Other Long Term Debt (Details Textual) - USD ($) $ in Thousands			3 Months Ended
	Apr. 29, 2020	May 15, 2019	Sep. 30, 2020	Sep. 30, 2019	Jun. 30, 2020
Proceeds from Sale, Maturity and Collection of Investments, Total			$ 96
iBio Stock [Member]
Proceeds from Sale, Maturity and Collection of Investments, Total			$ 96
Amended Loan Agreement [Member]
Senior Notes, Total		$ 11,585
Debt Instrument, Debt Default, Interest Rate Basic Spread		2.00%
Line of Credit Facility Covenant Prepayment Provisions Percentage of Excess Cash flow			25.00%
Amended Loan Agreement [Member] \| Term Loan [Member]
Debt Instrument, Face Amount		$ 3,585
Line of Credit Facility, Interest Rate at Period End			3.50%		3.50%
Number of Consecutive Monthly Installments		84
Number of Consecutive Monthly Installments, Fixed Amount		83
Debt Instrument, Periodic Payment, Total		$ 43
Line of Credit Facility Covenant Prepayment Provisions Percentage of Excess Cash flow		25.00%
Amended Loan Agreement [Member] \| Term Loan [Member] \| Eurodollar [Member]
Debt Instrument, Basis Spread on Variable Rate		3.00%
Amended Loan Agreement [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity		$ 8,000
Line of Credit Facility, Interest Rate at Period End			3.25%		3.25%
Line of Credit Facility Covenant Maximum Aggregate Revolving Advance		$ 8,000
Line of Credit Facility Covenant Aggregate Revolving Advance Receivables Advance Rate		85.00%
Line of Credit Facility Covenant Aggregate Revolving Advance Inventory Advance Rate		75.00%
Line of Credit Facility, Covenan,t Aggregate Revolving Advance, Appraised Liquidation Value, Inventory Advance Rate		85.00%
Paycheck Protection Program CARES Act [Member]
Proceeds from Notes Payable, Total	$ 1,639