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Note 19 - Quarterly Results of Operations (Unaudited) - Schedule of Quarterly Financial Information (Details) - USD ($)
 3 Months Ended 12 Months Ended
Oct. 31, 2024
Jul. 31, 2024
Apr. 30, 2024
Jan. 31, 2024
Oct. 31, 2023
Jul. 31, 2023
Apr. 30, 2023
Jan. 31, 2023
Oct. 31, 2024
Oct. 31, 2023
Net sales $ 19,485,565 $ 16,221,671 $ 16,112,098 $ 14,854,765 $ 17,329,163 $ 16,941,378 $ 19,619,536 $ 18,283,675 $ 66,674,099 $ 72,173,752
Gross profit 6,532,390 3,920,224 4,038,636 3,713,522 3,874,131 5,116,030 6,782,706 6,521,209 18,204,772 22,294,076
Selling, general and administrative expenses 5,850,216 5,237,646 5,319,580 5,093,105 5,145,418 4,957,518 5,662,339 5,455,466 21,500,547 21,220,741
Income (loss) from operations 662,088 (1,337,553) (1,301,137) (1,399,685) (1,291,388) 138,425 1,100,106 1,045,936 (3,376,287) 993,079
Income (loss) before income taxes 373,175 (1,550,370) (1,594,119) (1,418,195) (1,228,129) 99,883 2,498,020 842,448 (4,189,509) 2,212,222
Net income (loss) $ 373,462 $ (1,557,053) $ (1,601,346) $ (1,425,274) $ (1,267,376) $ 100,803 $ 2,423,087 $ 809,984 $ (4,210,211) $ 2,066,498
Net income (loss) per share - basic and diluted (in dollars per share) $ 0.05 $ (0.2) $ (0.21) $ (0.18) $ (0.17) $ 0.01 $ 0.31 $ 0.1 $ (0.54) $ 0.26