Condensed Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Apr. 30, 2020	Oct. 31, 2019
Current Assets:
Accounts receivable, net of allowance for doubtful accounts	$ 6,000	$ 15,000
Stockholders' equity:
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, share authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ .01
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	6,429,875	6,429,875
Treasury stock, shares	1,245,980	1,245,980