Note 6 - Debt (Details Textual) $ in Thousands	Jan. 31, 2019 USD ($)	Oct. 31, 2018
Line of Credit Facility, Maximum Borrowing Capacity	$ 5,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 5,000
Notes Collateralized by Aircraft Security Agreements [Member] \| Note Payable Due January 2020 [Member]
Debt Instrument, Interest Rate, Stated Percentage	5.75%
Notes Payable, Total	$ 158
Notes Payable to Bank [Member] \| Note 1 Due March 2019 [Member]
Notes Payable, Total	$ 51
Number of Notes	3
Notes Payable to Bank [Member] \| Note 1 Due March 2019 [Member] \| Minimum [Member]
Debt Instrument, Interest Rate, Stated Percentage	3.36%
Notes Payable to Bank [Member] \| Note 1 Due March 2019 [Member] \| Maximum [Member]
Debt Instrument, Interest Rate, Stated Percentage	4.46%
Notes Payable to Bank [Member] \| Note Payable Due June 2019 [Member]
Notes Payable, Total	$ 246
Notes Payable to Bank [Member] \| Debt Instrument Due May 2020 [Member]
Debt Instrument, Interest Rate, Stated Percentage	4.89%
Number of Notes	1
Note Collateralized by Real Estate [Member] \| Note Payable Due June 2019 [Member]
Debt Instrument, Interest Rate, Stated Percentage	6.25%
Number of Notes		1
Note Collateralized by Equipment [Member] \| Note Payable Due April 2022 [Member]
Debt Instrument, Interest Rate, Stated Percentage	4.50%
Notes Payable, Total	$ 66
Number of Notes	1
Note Collateralized by Equipment [Member] \| Debt Instrument Due May 2020 [Member]
Notes Payable, Total	$ 1,606

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Contractual interest rate for funds borrowed, under the debt agreement.

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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.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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