Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Oct. 31, 2020	9,814,118
Balance at Oct. 31, 2020	$ 98	$ 22,946	$ 9,020	$ 32,064
Exercise of stock options (in shares)	180,528
Exercise of stock options	$ 1	566	0	567
Stock-based compensation expense		634		634
Tax withholding related to vesting of restricted stock (in shares)	(2,540)
Tax withholding related to vesting of restricted stock		(13)	0	(13)
Consolidated net income			5,368	5,368
Issuance of restricted stock (in shares)	38,674
Issuance of restricted stock	$ 1	(1)	0	0
Forfeiture of restricted stock (in shares)	(5,182)
Shares (in shares) at Jul. 31, 2021	10,025,598
Balance at Jul. 31, 2021	$ 100	24,132	14,388	38,620
Balance (in shares) at Apr. 30, 2021	10,001,056
Balance at Apr. 30, 2021	$ 100	23,678	13,462	37,240
Exercise of stock options (in shares)	23,827
Exercise of stock options	$ 0	82	0	82
Stock-based compensation expense		374		374
Tax withholding related to vesting of restricted stock (in shares)	(261)
Tax withholding related to vesting of restricted stock	$ 0	(2)	0	(2)
Consolidated net income	$ 0	0	926	926
Issuance of restricted stock (in shares)	1,840
Forfeiture of restricted stock (in shares)	(864)
Forfeiture of restricted stock		0	0	0
Shares (in shares) at Jul. 31, 2021	10,025,598
Balance at Jul. 31, 2021	$ 100	24,132	14,388	38,620
Balance (in shares) at Oct. 31, 2021	10,058,571
Balance at Oct. 31, 2021	$ 101	24,301	15,201	$ 39,603
Exercise of stock options (in shares)	60,854			60,854
Exercise of stock options	$ 1	149		$ 150
Stock-based compensation expense		498		498
Tax withholding related to vesting of restricted stock (in shares)	(2,900)
Tax withholding related to vesting of restricted stock		(19)		(19)
Consolidated net income			997	997
Issuance of restricted stock (in shares)	39,666
Issuance of restricted stock	$ 0	0
Shares (in shares) at Jul. 31, 2022	10,156,191
Balance at Jul. 31, 2022	$ 102	24,929	16,198	41,229
Balance (in shares) at Apr. 30, 2022	10,118,685
Balance at Apr. 30, 2022	$ 102	24,648	15,427	40,177
Exercise of stock options (in shares)	37,927
Exercise of stock options	$ 0	93	0	93
Stock-based compensation expense		191	0	191
Tax withholding related to vesting of restricted stock (in shares)	(421)
Tax withholding related to vesting of restricted stock		(3)	0	(3)
Consolidated net income			771	771
Shares (in shares) at Jul. 31, 2022	10,156,191
Balance at Jul. 31, 2022	$ 102	$ 24,929	$ 16,198	$ 41,229