Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($)	Cumulative Effect, Period of Adoption, Adjustment [Member] Common Stock [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member] Retained Earnings [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Retained Earnings [Member]	Total
Balances (in shares) at Oct. 31, 2019				7,458,981
Balances (Accounting Standards Update 2018-17 [Member]) at Oct. 31, 2019	$ 6,554	$ (6,554)	$ 0
Balances at Oct. 31, 2019				$ 13,853,334	$ 7,385,566	$ 21,238,900
Share-based compensation, net (in shares)				(2,909)
Share-based compensation, net				$ 34,356	0	34,356
Net income (loss)				$ 0	(2,591,888)	(2,591,888)
Balances (in shares) at Jan. 31, 2020				7,456,072
Balances at Jan. 31, 2020				$ 13,894,244	4,787,124	18,681,368
Balances (in shares) at Oct. 31, 2019				7,458,981
Balances (Accounting Standards Update 2018-17 [Member]) at Oct. 31, 2019	$ 6,554	$ (6,554)	$ 0
Balances at Oct. 31, 2019				$ 13,853,334	7,385,566	21,238,900
Net income (loss)						(4,281,069)
Balances (in shares) at Apr. 30, 2020				7,456,072
Balances at Apr. 30, 2020				$ 13,920,921	3,097,943	17,018,864
Balances (in shares) at Jan. 31, 2020				7,456,072
Balances at Jan. 31, 2020				$ 13,894,244	4,787,124	18,681,368
Share-based compensation, net				26,677	0	26,677
Net income (loss)				$ 0	(1,689,181)	(1,689,181)
Balances (in shares) at Apr. 30, 2020				7,456,072
Balances at Apr. 30, 2020				$ 13,920,921	3,097,943	17,018,864
Balances (in shares) at Oct. 31, 2020				7,537,087
Balances at Oct. 31, 2020				$ 14,002,130	1,257,788	15,259,918
Share-based compensation, net (in shares)				(971)
Share-based compensation, net				$ 40,605	0	40,605
Net income (loss)				$ 0	(2,141,480)	(2,141,480)
Balances (in shares) at Jan. 31, 2021				7,536,116
Balances at Jan. 31, 2021				$ 14,042,735	(883,692)	13,159,043
Balances (in shares) at Oct. 31, 2020				7,537,087
Balances at Oct. 31, 2020				$ 14,002,130	1,257,788	15,259,918
Net income (loss)						1,243,679
Balances (in shares) at Apr. 30, 2021				7,536,116
Balances at Apr. 30, 2021				$ 14,144,497	2,501,467	16,645,964
Balances (in shares) at Jan. 31, 2021				7,536,116
Balances at Jan. 31, 2021				$ 14,042,735	(883,692)	13,159,043
Share-based compensation, net (in shares)				0
Share-based compensation, net				$ 101,762	0	101,762
Net income (loss)				$ 0	3,385,159	3,385,159
Balances (in shares) at Apr. 30, 2021				7,536,116
Balances at Apr. 30, 2021				$ 14,144,497	$ 2,501,467	$ 16,645,964