Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Oct. 31, 2019	9,462,267
Balance at Oct. 31, 2019	$ 95,000	$ 21,949,000	$ 9,489,000	$ 31,533,000
Exercise of stock options (in shares)	241,209			241,209
Exercise of stock options	$ 2,000	443,000		$ 445,000
Stock-based compensation expense		473,000		473,000
Issuance of restricted stock (in shares)	97,451
Issuance of restricted stock	$ 1,000	(1,000)
Issuance of common shares	$ 13,191,000	82,000		82,000
Dividends			(388,000)	(388,000)
Consolidated net income (loss)			(81,000)	(81,000)
Balance (in shares) at Oct. 31, 2020	9,814,118
Balance at Oct. 31, 2020	$ 98,000	22,946,000	9,020,000	$ 32,064,000
Exercise of stock options (in shares)	195,528			195,528
Exercise of stock options	$ 2,000	603,000		$ 605,000
Stock-based compensation expense		769,000		769,000
Issuance of restricted stock (in shares)	56,941
Issuance of restricted stock	$ 1,000	(1,000)
Consolidated net income (loss)			6,181,000	6,181,000
Forfeiture of restricted stock (in shares)	(5,182)
Tax withholding related to vesting of restricted stock (in shares)	(2,834)
Tax withholding related to vesting of restricted stock		(16,000)		(16,000)
Balance (in shares) at Oct. 31, 2021	10,058,571
Balance at Oct. 31, 2021	$ 101,000	$ 24,301,000	$ 15,201,000	$ 39,603,000