Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Total	Previously reported [Member]	Cumulative Effect, Period of Adoption, Adjustment [Member]	Common Stock [Member]	Common Stock [Member] Previously reported [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Previously reported [Member]	Retained Earnings [Member]	Retained Earnings [Member] Previously reported [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Other Comprehensive Income [Member] Previously reported [Member]	Accumulated Other Comprehensive Income [Member] Cumulative Effect, Period of Adoption, Adjustment [Member]	Treasury Stock [Member]	Treasury Stock [Member] Previously reported [Member]
Balance at Nov. 03, 2018	$ 49,066,501			$ 536,491		$ 10,670,848		$ 50,352,546			$ 390,407			$ (12,883,791)
Balance, shares at Nov. 03, 2018				3,873,731
Cash dividend	(3,864,216)							(3,864,216)
Purchase of treasury stock	$ (4,585,861)													(4,585,861)
Purchase of treasury stock, shares	(212,396)			(212,396)
Stock-based compensation	$ 21,004					16,814								4,190
Stock-based compensation, shares				485
Unrealized investment loss, net of tax effect	(1,243)										(1,243)
Exercise of employee stock options	$ 19,710													19,710
Exercise of employee stock options, shares	2,250			2,250
Net income	$ 8,810,420							8,810,420
Balance at Nov. 02, 2019	49,466,315	$ 49,466,315		$ 536,491	$ 536,491	10,687,662	$ 10,687,662	55,298,750	$ 55,298,750		$ 389,164	$ 389,164		(17,445,752)	$ (17,445,752)
Balance (Adjustments for New Accounting Pronouncement [Member]) at Nov. 02, 2019	49,401,724			$ 536,491		10,687,662		55,623,323						(17,445,752)
Balance, shares at Nov. 02, 2019				3,664,070	3,664,070
Balance, shares (Adjustments for New Accounting Pronouncement [Member]) at Nov. 02, 2019				3,664,070
Adoption of ASU 2016 (Adoption of ASU 2016-01 [Member]) at Oct. 31, 2020										$ 389,164			$ (389,164)
Adoption of ASU 2016 (Adoption of ASU 2016-02 [Member]) at Oct. 31, 2020			$ (64,591)							$ (64,591)
Cash dividend	(3,630,970)							(3,630,970)
Purchase of treasury stock	$ (822,450)													(822,450)
Purchase of treasury stock, shares	(33,100)			(33,100)
Stock-based compensation	$ 9,274					6,892								2,382
Stock-based compensation, shares				226
Exercise of employee stock options, shares	0
Net income	$ 5,983,698							5,983,698
Balance at Oct. 31, 2020	$ 50,941,276			$ 536,491		$ 10,694,554		$ 57,976,051						$ (18,265,820)
Balance, shares at Oct. 31, 2020				3,631,196