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Note 20 - Quarterly Results of Operations (Unaudited) - Schedule of Quarterly Financial Information (Details) - USD ($)
 3 Months Ended 12 Months Ended
Oct. 31, 2023
Jul. 31, 2023
Apr. 30, 2023
Jan. 31, 2023
Oct. 31, 2022
Jul. 31, 2022
Apr. 30, 2022
Jan. 31, 2022
Oct. 31, 2023
Oct. 31, 2022
Oct. 31, 2021
Net sales $ 17,329,163 $ 16,941,378 $ 19,619,536 $ 18,283,675 $ 20,055,750 $ 17,382,640 $ 17,200,578 $ 14,440,295 $ 72,173,752 $ 69,079,263 $ 59,136,294
Gross profit 3,874,131 5,116,030 6,782,706 6,521,209 6,623,350 4,808,205 5,033,446 4,045,852 22,294,076 20,510,853 16,274,079
Selling, general and administrative expenses 5,145,418 4,957,518 5,662,339 5,455,466 5,188,984 4,954,221 5,036,331 4,780,199 21,220,741 19,959,735 18,239,152
Income (loss) from operations (1,291,388) 138,425 1,100,106 1,045,936 1,413,659 (166,384) (21,011) (753,400) 993,079 472,864 (1,973,323)
Income (loss) before income taxes (1,228,129) 99,883 2,498,020 842,448 1,196,081 (362,249) (233,185) (923,045) $ 2,212,222 $ (322,398) $ 6,590,618
Net income (loss) $ (1,267,376) $ 100,803 $ 2,423,087 $ 809,984 $ 1,188,564 $ (371,871) $ (227,991) $ (935,793)      
Net income (loss) per share - basic and diluted (in dollars per share) $ (0.17) $ 0.01 $ 0.31 $ 0.1 $ 0.15 $ (0.05) $ (0.03) $ (0.12) $ 0.26 $ (0.05) $ 0.87