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Note 10 - Loan and Credit Agreements (Details Textual) |  |  | 12 Months Ended |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 11, 2016 USD ($) | Feb. 10, 2016 USD ($) | Nov. 30, 2016 USD ($) | Nov. 30, 2015 USD ($) | Oct. 31, 2016 USD ($) | Aug. 31, 2016 USD ($) | May 29, 2014 USD ($) | May 01, 2013 USD ($) | Feb. 01, 2013 | May 10, 2012 USD ($) | May 01, 2010 USD ($)
Long-term Debt |  |  | $ 3,911,001 | $ 5,949,329 |  |  |  |  |  |  |
Repayments of Long-term Debt |  |  | $ 1,911,506 | $ 1,160,776 |  |  |  |  |  |  |
Iowa Finance Authority Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 2.75% | 2.75% |  |  |  |  |  |  |
Long-term Debt |  |  | $ 512,935 | $ 647,132 |  |  |  |  |  |  |
Debt Instrument, Periodic Payment |  |  | 12,500 | $ 12,500 |  |  |  |  |  |  |
US Bank [Member] |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Capacity Available, Terminated | $ 200,000 |  |  |  |  |  |  |  |  |  |
US Bank [Member] | The Line of Credit [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  | $ 5,000,000 |  |  |
Long-term Line of Credit |  |  | 3,284,114 |  |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | $ 1,559,208 |  |  |  |  |  |  |  |
Line of Credit Facility Borrowing Capacity Borrowing Base Percentage of Accounts Receivable |  |  | 75.00% |  |  |  |  |  |  |  |
Line of Credit Facility Borrowing Capacity Borrowing Base Minimum Percentage of Aggregate Receivables |  |  | 20.00% |  |  |  |  |  |  |  |
Line of Credit Facility Borrowing Capacity Borrowing Base Percentage of Inventory |  |  | 50.00% |  |  |  |  |  |  |  |
Line of Credit Facility Borrowing Capacity Borrowing Base Maximum Inventory Amount |  |  | $ 3,750,000 |  |  |  |  |  |  |  |
US Bank [Member] | The Line of Credit [Member] | Revolving Credit Facility [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 5.00% |  |  |  |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  |  | 0.25% |  |  |  |  |  |  |  |
US Bank [Member] | US Bank UHC Loan [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 3.15% |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  | $ 880,000 |
Term Loan Final Payment |  |  |  |  |  |  |  |  |  | $ 283,500 |
Long-term Debt |  |  | $ 337,147 |  |  |  |  |  |  |  |
US Bank [Member] | The 2013 Term Notes [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 2.98% |  |  |  |  |  |  |  |
Long-term Debt |  |  | $ 2,156,168 |  |  |  |  |  |  |  |
Repayments of Long-term Debt |  | $ 1,078,196 |  |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment |  |  | 51,350 |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  | $ 1,363,000 |  |  |  |  |  |  |  |
US Bank [Member] | The 2014 Term Note [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 2.98% |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  | $ 1,000,000 |  |  |  |
Long-term Debt |  |  | $ 904,751 |  |  |  |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  | $ 890,000 |  |  |  |  |  |  |  |
US Bank [Member] | Line of Credit, 2013 Term Notes, and 2014 Term Notes [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant Quarterly Fixed Charge Coverage Ratio |  |  | 1.15 |  |  |  |  |  |  |  |
Debt Instrument, Covenant Year-to-Date Fixed Charge Coverage Ratio |  |  | 1 |  |  |  |  |  |  |  |
Debt Instrument, Covenant EBITDA Amount, Period One |  |  |  |  |  | $ 360,000 |  |  |  |  |
Debt Instrument, Covenant EBITDA Amount, Period Two |  |  | $ 390,000 |  |  |  |  |  |  |  |
Debt Instrument, Covenant EBITDA Amount, Period Three |  |  |  |  | $ 395,000 |  |  |  |  |  |
Debt Instrument, Covenant EBITDA Amount, Period Four |  |  | $ 400,000 |  |  |  |  |  |  |  |
Debt Instrument, Covenant Monthly Minimum Liquidity Amount |  |  |  |  |  | $ 750,000 |  |  |  |  |
US Bank [Member] | US Bank UHC Loan, Line of Credit, 2013 Term Notes, and 2014 Term Notes [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant Interest Rate Increase in Event of Default |  |  | 5.00% |  |  |  |  |  |  |  |
The First National Bank of West Union [Member] | Iowa Finance Authority Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  | 2.75% |  | 3.50%
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 1,300,000
Debt Instrument, Covenant Debt Service Coverage Ratio |  |  | 1.5 |  |  |  |  |  |  |  |

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- Definition Represents the EBITDA amount for the fourth period required by debt agreement. EBITDA means income, plus interest expense, plus income tax expense, plus depreciation expense, plus amortization expense, subject to to adjustments in USB's sole discretion. + References No definition available. + Details
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- Definition Represents the EBITDA amount for the fist period required by debt agreement. EBITDA means income, plus interest expense, plus income tax expense, plus depreciation expense, plus amortization expense, subject to to adjustments in USB's sole discretion. + References No definition available. + Details
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- Definition Represents the EBITDA amount for the second period required by debt agreement. EBITDA means income, plus interest expense, plus income tax expense, plus depreciation expense, plus amortization expense, subject to to adjustments in USB's sole discretion. + References No definition available. + Details
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- Definition Represents the monthly minimum liquidity amount required by debt agreement. Minimum liquidity meaning unrestricted cash and cash equivalents plus borrowing base availability. + References No definition available. + Details
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- Definition Represents the EBITDA amount for the third period required by debt agreement. EBITDA means income, plus interest expense, plus income tax expense, plus depreciation expense, plus amortization expense, subject to to adjustments in USB's sole discretion. + References No definition available. + Details
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- Definition Line of credit facility borrowing capacity borrowing base maximum inventoryamount + References No definition available. + Details
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- Definition The maximum amount of borrowing capacity under a line of credit that was available but had not drawn on was terminated. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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 + Details
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- 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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -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 3: http://www.xbrl.org/2003/role/presentationRef -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
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