Note 9 - Net Income (Loss) Per Share - Components of Reconciliation of Numerators and Denominators Net Loss Per Share (Details) - USD ($)	3 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Net income (loss)	$ (1,425,274)	$ 809,984
Shares (denominator) (in shares)	7,751,116	7,893,194
Net income (loss) per share: Basic and diluted (in dollars per share)	$ (0.18)	$ 0.1
Diluted net income (loss) per share (in dollars per share)	$ (0.18)	$ 0.1