Note 11 - Revenue Recognition - Revenue Attributed to United States and All Other Countries (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Net sales	$ 17,382,640	$ 15,634,760	$ 49,023,513	$ 43,252,447
UNITED STATES
Net sales	14,667,822	12,922,510	41,604,490	35,007,855
Non-US [Member]
Net sales	$ 2,714,818	$ 2,712,250	$ 7,419,023	$ 8,244,592