Note 7 - Loan and Credit Agreements - Summary Of Term Debt (Details) (USD $)	Feb. 28, 2015	Nov. 30, 2014
Long-term Debt	$ 6,916,317us-gaap_LongTermDebt	$ 7,233,226us-gaap_LongTermDebt
Less current portion of term debt	1,293,675us-gaap_LongTermDebtCurrent	1,283,897us-gaap_LongTermDebtCurrent
Term debt, excluding current portion	5,622,642us-gaap_LongTermDebtNoncurrent	5,949,329us-gaap_LongTermDebtNoncurrent
Iowa Finance Authority [Member]
Long-term Debt	745,435	777,689
US Bank Loan 1 [Member]
Long-term Debt	1,547,175	1,662,311
US Bank Loan 2 [Member]
Long-term Debt	824,342	850,930
US Bank Loan 3 [Member]
Long-term Debt	935,517	965,889
US Bank Loan 4 [Member]
Long-term Debt	1,334,497	1,407,366
US Bank Loan 5 [Member]
Long-term Debt	557,634	588,101
US Bank Loan 6 [Member]
Long-term Debt	$ 971,717	$ 980,940

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

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- Definition

Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. 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 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19,20)

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). 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

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-Topic 210

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

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