Note 3 - Goodwill and Other Intangible Assets - Amortization of Finite-lived Intangible Assets (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jan. 31, 2018	Oct. 31, 2017
Gross Carrying Amount	$ 13,458,700	$ 13,458,700
Accumulated Amortization	$ 12,767,161	$ 12,624,749
Weighted Average Amortization (Year)
Noncompete Agreements [Member]
Gross Carrying Amount	$ 2,536,488	$ 2,536,488
Accumulated Amortization	$ 2,510,656	$ 2,502,976
Weighted Average Amortization (Year)	1 year 58 days	1 year 120 days
Customer Lists [Member]
Gross Carrying Amount	$ 10,313,819	$ 10,313,819
Accumulated Amortization	$ 9,912,484	$ 9,785,842
Weighted Average Amortization (Year)	339 days	1 year 54 days
Other Intangible Assets [Member]
Gross Carrying Amount	$ 608,393	$ 608,393
Accumulated Amortization	$ 344,021	$ 335,931
Weighted Average Amortization (Year)	21 years 306 days	22 years 29 days