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Note 7 - Long-term Debt and Note Payable to Bank (Details Textual) - USD ($) |  |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Oct. 31, 2016 | Apr. 26, 2016 | Oct. 31, 2016 | Feb. 28, 2018 | Feb. 28, 2017 | Oct. 31, 2015
Long-term Debt | $ 6,945,994 |  | $ 6,945,994 |  |  | $ 7,227,007
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months | 294,214 |  | 294,214 |  |  |
Long-term Debt, Maturities, Repayments of Principal in Year Two | 11,651,780 |  | 11,651,780 |  |  |
Revolving Credit Facility [Member] | The Commercial Loan [Member] |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 9,000,000 |  | $ 9,000,000 |  |  |
Revolving Credit Facility [Member] | Certain Receivables Aged Ninety Days or Over [Member] | The Commercial Loan [Member] |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity, Percentage of Related Category Used For Calculation |  |  | 85.00% |  |  |
Line of Credit Facility, Maximum Borrowing Capacity, Maximum Aging of Receivables |  |  | 90 days |  |  |
Revolving Credit Facility [Member] | Certain Foreign Receivables [Member] | The Commercial Loan [Member] |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity, Percentage of Related Category Used For Calculation |  |  | 35.00% |  |  |
Line of Credit Facility, Maximum Amount Outstanding During Period |  |  | $ 1,000,000 |  |  |
Revolving Credit Facility [Member] | Certain Raw Materials of Inventory [Member] | The Commercial Loan [Member] |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity, Percentage of Related Category Used For Calculation |  |  | 25.00% |  |  |
Revolving Credit Facility [Member] | BNC [Member] |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 7,000,000 |  |  |  |
Revolving Credit Facility [Member] | BNC [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 4.18% | 3.65% |  |  |  |
Revolving Credit Facility [Member] | BNC [Member] | Scenario, Forecast [Member] |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  | $ 6,000,000 | $ 6,500,000 |
North Carolina Real Estate Loan [Member] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 4.25% |  | 4.25% |  |  | 4.25%
Long-term Debt | $ 1,780,209 | $ 1,816,609 | $ 1,780,209 |  |  | $ 1,852,230
Virginia Real Estate Loan [Member] |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 4.25% |  | 4.25% |  |  | 4.25%
Long-term Debt | $ 5,165,785 | $ 5,271,411 | $ 5,165,785 |  |  | $ 5,374,777
The Commercial Loan [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |
Long-term Line of Credit | 5,000,000 |  | 5,000,000 |  |  | 6,000,000
Line of Credit Facility, Remaining Borrowing Capacity | $ 2,000,000 |  | $ 2,000,000 |  |  | $ 2,600,000

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- Definition Contractual interest rate for funds borrowed, under the debt 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(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://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 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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