Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income [Member]	Treasury Stock [Member]
Balance at Nov. 04, 2017	$ 47,414,297	$ 536,491	$ 10,669,231	$ 46,167,528	$ 412,233	$ (10,371,186)
Balance, shares at Nov. 04, 2017		3,997,569
Cash dividend	(778,614)			(778,614)
Purchase of treasury stock	$ (2,512,605)					(2,512,605)
Purchase of treasury stock, shares	(123,838)	(123,838)
Stock-based compensation	$ 1,617		1,617
Unrealized investment loss, net of tax effect	$ (21,826)				(21,826)
Exercise of employee stock options, shares	0
Net income	$ 4,963,632			4,963,632
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	$ 536,491	$ 10,687,662	$ 55,298,750	$ 389,164	$ (17,445,752)
Balance, shares at Nov. 02, 2019		3,664,070