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Note 10 - Loan and Credit Agreements (Details Textual) |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 29, 2018 USD ($) | Sep. 28, 2017 USD ($) | Nov. 30, 2018 USD ($) | Nov. 30, 2017 USD ($) | Feb. 01, 2013 | May 01, 2010 USD ($)
Long-term Debt, Total |  |  | $ 2,750,477 | $ 3,569,491 |  |
Repayments of Long-term Debt, Total |  |  | 219,429 | 2,825,148 |  |
Term Loan Due October 2037 [Member] |  |  |  |  |  |
Long-term Debt, Total |  |  | $ 2,517,510 | $ 2,595,007 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 5.00% | 5.00% |  |
Debt Instrument, Periodic Payment, Total |  |  | $ 17,271 | $ 17,271 |  |
Term Loan Due October 2019 [Member] |  |  |  |  |  |
Long-term Debt, Total |  |  |  | $ 599,584 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 5.00% | 5.00% |  |
Debt Instrument, Periodic Payment, Total |  |  | $ 3,249 | $ 3,249 |  |
Iowa Finance Authority Term Loan [Member] |  |  |  |  |  |
Long-term Debt, Total |  |  | $ 232,967 | $ 374,900 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 2.75% | 2.75% |  |
Debt Instrument, Periodic Payment, Total |  |  | $ 12,500 | $ 12,500 |  |
Bank Midwest [Member] |  |  |  |  |  |
Long-term Line of Credit, Total |  |  | 3,505,530 |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | $ 1,494,470 |  |  |
Line of Credit, Borrowing Base, Accounts Receivable |  | 75.00% |  |  |  |
Line of Credit, Borrowing Base, Inventory |  | 50.00% |  |  |  |
Debt Instrument, Covenant, Minimum Working Capital Ratio |  | 1.75 |  |  |  |
Debt Instrument, Covenant, Minimum Working Capital |  | $ 5,100,000 |  |  |  |
Debt Instrument, Covenant, Maximum Debt to Worth Ratio |  | 1 |  |  |  |
Debt Instrument, Covenant, Minimum Tangible Balance Sheet Equity, Percentage |  | 40.00% |  |  |  |
Debt Instrument, Covenant, Minimum Debt Service Coverage Ratio |  | 1.25 |  |  |  |
Debt Instrument, Covenant, Minimum Debt Service Coverage Ratio, Tolerance |  | 0.1 |  |  |  |
Bank Midwest [Member] | Term Loan Due October 2037 [Member] |  |  |  |  |  |
Long-term Debt, Total |  | $ 2,600,000 |  |  |  |
Debt Instrument, Periodic Payment, Total |  | 17,271 |  |  |  |
Bank Midwest [Member] | Term Loan Due October 2037 [Member] | United States Department of Agriculture [Member] |  |  |  |  |  |
Upfront Guarantee Fee |  | $ 62,400 |  |  |  |
Guarantee Fee, Annual Fee, Percentage |  | 0.50% |  |  |  |
Guarantee Requirement, Personally Guarantee, Shareholders Ownership Percentage |  | 20.00% |  |  |  |
Bank Midwest [Member] | Term Loan Due October 2037 [Member] | J. Ward McConnell Jr. [Member] |  |  |  |  |  |
Personally Guaranteed, Percentage of Loan |  | 38.00% |  |  |  |
Personally Guaranteed, Fee, Percentage of Guaranteed Amount |  | 2.00% |  |  |  |
Bank Midwest [Member] | Term Loan Due October 2019 [Member] |  |  |  |  |  |
Long-term Debt, Total |  | $ 600,000 |  |  |  |
Repayments of Long-term Debt, Total | $ 600,000 |  |  |  |  |
Repayments of Long-term Debt, Principal | 596,563 |  |  |  |  |
Repayments of Long-term Debt, Interest | $ 2,328 |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 5.00% |  |  |  |
Debt Instrument, Periodic Payment, Total |  | $ 3,249 |  |  |  |
Bank Midwest [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 5,000,000 |  |  |  |
Line of Credit Facility, Interest Rate During Period |  | 6.50% |  |  |  |
Bank Midwest [Member] | Revolving Credit Facility [Member] | Wall Street Journal Rate [Member] |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 1.00% |  |  |  |
Line of Credit Facility, Interest Rate During Period |  | 4.25% |  |  |  |
Bank Midwest [Member] | Term Loan Due October 2037 [Member] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 5.00% |  |  |  |
Bank Midwest [Member] | Term Loan Due October 2037 [Member] | Minimum [Member] |  |  |  |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  | 4.15% |  |  |  |
Bank Midwest [Member] | Term Loan Due October 2037 [Member] | Wall Street Journal Rate [Member] |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 0.75% |  |  |  |
US Bank [Member] |  |  |  |  |  |
Repayments of Lines of Credit |  | $ 6,562,030 |  |  |  |
Repayments of Lines of Credit, Unpaid Principal |  | 6,528,223 |  |  |  |
Repayments of Lines of Credit, Accrued and Unpaid Interest and Fees |  | $ 33,807 |  |  |  |
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 |  |

X
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- Definition The maximum debt to worth ratio that is required to maintain pursuant to the debt agreement. + References No definition available. + Details
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- Definition The minimum debt service coverage ratio that is required to maintain pursuant to the debt agreement. + References No definition available. + Details
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- Definition The tolerance of minimum debt service coverage ratio that is required to maintain pursuant to the debt agreement. + References No definition available. + Details
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- Definition The minimum percentage of tangible balance sheet equity that is required to maintain pursuant to the debt agreement. + References No definition available. + Details
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- Definition The ownership percentage of shareholders who are required to personally guarantee a portion of the loan pursuant to the guarantee agreement. + References No definition available. + Details
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- Definition The borrowing base for a line of credit, valued as a percentage of the balance of accounts receivable. + References No definition available. + Details
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- Definition Amount of accrued and unpaid interest and fees of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References No definition available. + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6036836-161870 Reference 2: 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=114775744&loc=d3e28551-108399 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- 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
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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://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 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=6876686&loc=d3e534808-122878 Reference 3: 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)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition The effective interest rate during the reporting period. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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