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Note 5 - Senior Credit Facility, Subordinated Convertible Note, Net - CD Financial, LLC and Other Long-Term Debt (Details Textual) (USD $)
In Thousands, except Share data, unless otherwise specified
1 Months Ended 9 Months Ended 12 Months Ended 1 Months Ended 0 Months Ended 4 Months Ended 1 Months Ended
Jun. 27, 2012
Mar. 31, 2015
Mar. 31, 2014
Jun. 30, 2013
Mar. 31, 2015
Sep. 22, 2014
May 15, 2015
May 15, 2015
Feb. 28, 2015
Aug. 22, 2014
Aug. 28, 2014
Jun. 30, 2014
Oct. 31, 2013
Feb. 23, 2015
Mar. 31, 2012
Feb. 21, 2008
Sep. 30, 2014
Senior Notes $ 11,727us-gaap_SeniorNotes                                
Loans Payable, Noncurrent 3,727us-gaap_LongTermLoansPayable                                
Debt Instrument, Periodic Payment   44us-gaap_DebtInstrumentPeriodicPayment                              
Share Price $ 0.09us-gaap_SharePrice $ 0.08us-gaap_SharePrice     $ 0.08us-gaap_SharePrice             $ 0.25us-gaap_SharePrice          
Guarantor Obligations, Maximum Exposure, Undiscounted                         1,000us-gaap_GuaranteeObligationsMaximumExposure        
Minimum EBITDA       1,500inbp_Minimumebitda                          
Repayments of Notes Payable   404us-gaap_RepaymentsOfNotesPayable 699us-gaap_RepaymentsOfNotesPayable                            
Interest Paid 333us-gaap_InterestPaid 539us-gaap_InterestPaid 537us-gaap_InterestPaid                            
Other Expenses 217us-gaap_OtherExpenses                                
Capital Lease Obligations   161us-gaap_CapitalLeaseObligations     161us-gaap_CapitalLeaseObligations             83us-gaap_CapitalLeaseObligations          
Term Loan [Member] | Eurodollar [Member]                                  
Line of Credit Facility, Interest Rate at Period End                       3.75%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_DebtInstrumentAxis
= inbp_TermLoanMember
/ us-gaap_VariableRateAxis
= us-gaap_EurodollarMember
         
Debt Instrument, Basis Spread on Variable Rate   3.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= inbp_TermLoanMember
/ us-gaap_VariableRateAxis
= us-gaap_EurodollarMember
                             
Term Loan [Member] | Scenario Event of Default [Member]                                  
Debt Instrument, Interest Rate, Increase (Decrease)   2.00%us-gaap_DebtInstrumentInterestRateIncreaseDecrease
/ us-gaap_DebtInstrumentAxis
= inbp_TermLoanMember
/ us-gaap_StatementScenarioAxis
= inbp_ScenarioEventOfDefaultMember
                             
Term Loan [Member]                                  
Line of Credit Facility, Interest Rate at Period End   3.75%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_DebtInstrumentAxis
= inbp_TermLoanMember
    3.75%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_DebtInstrumentAxis
= inbp_TermLoanMember
                       
Repayments of Debt       1,000us-gaap_RepaymentsOfDebt
/ us-gaap_DebtInstrumentAxis
= inbp_TermLoanMember
                         
Revolving Advances [Member]                                  
Line of Credit Facility Covenant Maximum Aggregate Revolving Advance   8,000inbp_LineOfCreditFacilityCovenantMaximumAggregateRevolvingadvance
/ us-gaap_DebtInstrumentAxis
= inbp_RevolvingAdvancesMember
    8,000inbp_LineOfCreditFacilityCovenantMaximumAggregateRevolvingadvance
/ us-gaap_DebtInstrumentAxis
= inbp_RevolvingAdvancesMember
                       
Line of Credit Facility Covenant Aggregate Revolving Advance Receivables Advance Rate   85.00%inbp_LineOfCreditFacilityCovenantAggregateRevolvingAdvanceReceivablesAdvancerate
/ us-gaap_DebtInstrumentAxis
= inbp_RevolvingAdvancesMember
    85.00%inbp_LineOfCreditFacilityCovenantAggregateRevolvingAdvanceReceivablesAdvancerate
/ us-gaap_DebtInstrumentAxis
= inbp_RevolvingAdvancesMember
                       
Line of Credit Facility Covenant Aggregate Revolving Advance Inventory Advance Rate   65.00%inbp_LineOfCreditFacilityCovenantAggregateRevolvingAdvanceInventoryAdvancerate
/ us-gaap_DebtInstrumentAxis
= inbp_RevolvingAdvancesMember
    65.00%inbp_LineOfCreditFacilityCovenantAggregateRevolvingAdvanceInventoryAdvancerate
/ us-gaap_DebtInstrumentAxis
= inbp_RevolvingAdvancesMember
                       
Line of Credit Facility Covenant Prepayment Provisions Percentage of Excess Cash flow   50.00%inbp_LineOfCreditFacilityCovenantPrepaymentProvisionsPercentageOfExcessCashflow
/ us-gaap_DebtInstrumentAxis
= inbp_RevolvingAdvancesMember
    50.00%inbp_LineOfCreditFacilityCovenantPrepaymentProvisionsPercentageOfExcessCashflow
/ us-gaap_DebtInstrumentAxis
= inbp_RevolvingAdvancesMember
                       
Loan Agreement Mandatory Repayment Amount   1,000inbp_LoanAgreementMandatoryRepaymentAmount
/ us-gaap_DebtInstrumentAxis
= inbp_RevolvingAdvancesMember
    1,000inbp_LoanAgreementMandatoryRepaymentAmount
/ us-gaap_DebtInstrumentAxis
= inbp_RevolvingAdvancesMember
                       
Promissory Note [Member] | CD Financial LLC [Member]                                  
Debt Instrument, Face Amount 1,714us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= inbp_PromissoryNoteMember
/ us-gaap_LineOfCreditFacilityAxis
= inbp_CdfinancialLlcMember
                               
CD MDC Note [Member]                                  
Repayments of Notes Payable 300,000us-gaap_RepaymentsOfNotesPayable
/ us-gaap_DebtInstrumentAxis
= inbp_CdMdcNoteMember
                               
E. Gerald Kay [Member] | Vitamin Realty LLC [Member]                                  
Debt Instrument, Interest Rate, Stated Percentage   4.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= inbp_EgeraldKayMember
/ us-gaap_LineOfCreditFacilityAxis
= inbp_VitaminRealtyLlcMember
    4.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= inbp_EgeraldKayMember
/ us-gaap_LineOfCreditFacilityAxis
= inbp_VitaminRealtyLlcMember
                       
Acura Financial Services [Member]                                  
Debt Instrument, Periodic Payment         1us-gaap_DebtInstrumentPeriodicPayment
/ us-gaap_DebtInstrumentAxis
= inbp_AcuraFinancialServicesMember
                       
Debt Instrument, Interest Rate, Stated Percentage   1.90%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= inbp_AcuraFinancialServicesMember
    1.90%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= inbp_AcuraFinancialServicesMember
                       
Other Notes Payable                           19us-gaap_OtherNotesPayable
/ us-gaap_DebtInstrumentAxis
= inbp_AcuraFinancialServicesMember
41us-gaap_OtherNotesPayable
/ us-gaap_DebtInstrumentAxis
= inbp_AcuraFinancialServicesMember
   
Eurodollar [Member] | Revolving Credit Facility [Member]                                  
Debt Instrument, Basis Spread on Variable Rate   2.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_VariableRateAxis
= us-gaap_EurodollarMember
                             
Revolving Credit Facility [Member] | Minimum [Member] | PNC Bank [Member]                                  
Line of Credit Facility, Interest Rate at Period End   3.25%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= inbp_PncBankMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
    3.25%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= inbp_PncBankMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
                       
Revolving Credit Facility [Member]                                  
Line of Credit Facility, Interest Rate at Period End   3.25%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
    3.25%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
            3.25%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
         
Line of Credit Facility, Maximum Borrowing Capacity 8,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
                               
Convertible Line of Credit Note [Member] | Minimum [Member] | PNC Bank [Member]                                  
Line of Credit Facility, Interest Rate at Period End   3.43%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_CreditFacilityAxis
= inbp_ConvertibleLineOfCreditNoteMember
/ us-gaap_LineOfCreditFacilityAxis
= inbp_PncBankMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
    3.43%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_CreditFacilityAxis
= inbp_ConvertibleLineOfCreditNoteMember
/ us-gaap_LineOfCreditFacilityAxis
= inbp_PncBankMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
                       
Convertible Line of Credit Note [Member]                                  
Line of Credit Facility, Interest Rate at Period End   3.43%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_CreditFacilityAxis
= inbp_ConvertibleLineOfCreditNoteMember
    3.43%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_CreditFacilityAxis
= inbp_ConvertibleLineOfCreditNoteMember
                       
Line of Credit Facility, Maximum Borrowing Capacity           350us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= inbp_ConvertibleLineOfCreditNoteMember
                     
Debt Instrument, Basis Spread on Variable Rate           3.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= inbp_ConvertibleLineOfCreditNoteMember
                     
Debt Instrument Convertible Aggregate Amount Advanced Trigger           350inbp_DebtInstrumentConvertibleAggregateAmountAdvancedtrigger
/ us-gaap_CreditFacilityAxis
= inbp_ConvertibleLineOfCreditNoteMember
                     
Long-term Line of Credit   307us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= inbp_ConvertibleLineOfCreditNoteMember
    307us-gaap_LineOfCredit
/ us-gaap_CreditFacilityAxis
= inbp_ConvertibleLineOfCreditNoteMember
                       
Minimum [Member] | IBio Inc [Member]                                  
Share Price   $ 0.88us-gaap_SharePrice
/ invest_InvestmentAxis
= inbp_IBioIncMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
    $ 0.88us-gaap_SharePrice
/ invest_InvestmentAxis
= inbp_IBioIncMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
                       
Subsequent Event [Member]                                  
Stock Issued During Period, Shares, New Issues             60,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
60,000us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
                 
Stock Issued During Period, Value, New Issues             64us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
64us-gaap_StockIssuedDuringPeriodValueNewIssues
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
                 
PNC Bank [Member]                                  
Prepayment of Loan Outstanding                         293inbp_PrepaymentOfLoanoutstanding
/ us-gaap_LineOfCreditFacilityAxis
= inbp_PncBankMember
       
CD Financial LLC [Member] | Default Rate [Member]                                  
Debt Instrument, Interest Rate, Stated Percentage 10.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtConversionByUniqueDescriptionAxis
= inbp_DefaultRateMember
/ us-gaap_LineOfCreditFacilityAxis
= inbp_CdfinancialLlcMember
                               
CD Financial LLC [Member]                                  
Debt Instrument, Interest Rate, Stated Percentage 6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LineOfCreditFacilityAxis
= inbp_CdfinancialLlcMember
                            9.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_LineOfCreditFacilityAxis
= inbp_CdfinancialLlcMember
 
Debt Instrument, Face Amount                               4,500us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LineOfCreditFacilityAxis
= inbp_CdfinancialLlcMember
 
Convertible Notes Payable 5,350us-gaap_ConvertibleNotesPayable
/ us-gaap_LineOfCreditFacilityAxis
= inbp_CdfinancialLlcMember
                               
Debt Instrument, Convertible, Conversion Price $ 0.65us-gaap_DebtInstrumentConvertibleConversionPrice1
/ us-gaap_LineOfCreditFacilityAxis
= inbp_CdfinancialLlcMember
                               
Embedded Derivative, Fair Value of Embedded Derivative Liability   15us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability
/ us-gaap_LineOfCreditFacilityAxis
= inbp_CdfinancialLlcMember
    15us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability
/ us-gaap_LineOfCreditFacilityAxis
= inbp_CdfinancialLlcMember
            717us-gaap_EmbeddedDerivativeFairValueOfEmbeddedDerivativeLiability
/ us-gaap_LineOfCreditFacilityAxis
= inbp_CdfinancialLlcMember
         
Vitamin Realty LLC [Member]                                  
Debt Instrument, Face Amount   686us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LineOfCreditFacilityAxis
= inbp_VitaminRealtyLlcMember
    686us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LineOfCreditFacilityAxis
= inbp_VitaminRealtyLlcMember
                       
E. Gerald Kay [Member]                                  
Debt Instrument, Face Amount                                 27us-gaap_DebtInstrumentFaceAmount
/ us-gaap_LineOfCreditFacilityAxis
= inbp_EgeraldKayMember
Marlin Leasing [Member] | Capital Lease Obligations [Member]                                  
Debt Instrument, Interest Rate, Stated Percentage                   5.60%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_CounterpartyNameAxis
= inbp_MarlinLeasingMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_CapitalLeaseObligationsMember
             
Marlin Leasing [Member]                                  
Debt Instrument, Interest Rate, Stated Percentage                 7.10%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_CounterpartyNameAxis
= inbp_MarlinLeasingMember
               
Capital Lease Obligations                 68us-gaap_CapitalLeaseObligations
/ us-gaap_CounterpartyNameAxis
= inbp_MarlinLeasingMember
47us-gaap_CapitalLeaseObligations
/ us-gaap_CounterpartyNameAxis
= inbp_MarlinLeasingMember
             
Capital Lease Obligation Monthly Lease Payment                 2inbp_CapitalLeaseObligationMonthlyLeasepayment
/ us-gaap_CounterpartyNameAxis
= inbp_MarlinLeasingMember
2inbp_CapitalLeaseObligationMonthlyLeasepayment
/ us-gaap_CounterpartyNameAxis
= inbp_MarlinLeasingMember
             
Quantum Analytics [Member]                                  
Debt Instrument, Interest Rate, Stated Percentage                     0.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_CounterpartyNameAxis
= inbp_QuantumAnalyticsMember
           
Capital Lease Obligations                     138us-gaap_CapitalLeaseObligations
/ us-gaap_CounterpartyNameAxis
= inbp_QuantumAnalyticsMember
           
Capital Lease Obligation Monthly Lease Payment                     $ 8inbp_CapitalLeaseObligationMonthlyLeasepayment
/ us-gaap_CounterpartyNameAxis
= inbp_QuantumAnalyticsMember