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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)           (5,714,899)
Balances (in shares) at Jul. 31, 2020       7,537,087    
Balances at Jul. 31, 2020       $ 13,961,526 1,664,113 15,625,639
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
Share-based compensation, net (in shares)       81,015    
Share-based compensation, net       $ 40,605 0 40,605
Net income (loss)       $ 0 (1,433,830) (1,433,830)
Balances (in shares) at Jul. 31, 2020       7,537,087    
Balances at Jul. 31, 2020       $ 13,961,526 1,664,113 15,625,639
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)           6,616,446
Balances (in shares) at Jul. 31, 2021       7,566,171    
Balances at Jul. 31, 2021       $ 14,219,584 7,874,234 22,093,818
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       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
Share-based compensation, net (in shares)       30,055    
Share-based compensation, net       $ 75,087 0 75,087
Net income (loss)       $ 0 5,372,767 5,372,767
Balances (in shares) at Jul. 31, 2021       7,566,171    
Balances at Jul. 31, 2021       $ 14,219,584 $ 7,874,234 $ 22,093,818