Condensed 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
Stock-based compensation	750					750
Unrealized investment loss, net of tax effect	(16,540)										(16,540)
Net income	1,535,806							1,535,806
Balance at Feb. 02, 2019	50,586,516			$ 536,491		10,671,598		51,888,351			373,867			(12,883,791)
Balance, shares at Feb. 02, 2019				3,873,731
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
Unrealized investment loss, net of tax effect	(40,408)
Net income	5,898,635
Balance at Aug. 03, 2019	48,246,860			$ 536,491		10,686,657		52,386,965			349,999			(15,713,252)
Balance, shares at Aug. 03, 2019				3,746,570
Balance at Feb. 02, 2019	50,586,516			$ 536,491		10,671,598		51,888,351			373,867			(12,883,791)
Balance, shares at Feb. 02, 2019				3,873,731
Cash dividend	(3,864,216)							(3,864,216)
Purchase of treasury stock	(302,115)													(302,115)
Purchase of treasury stock, shares				(13,703)
Stock-based compensation	10,729					6,539								4,190
Stock-based compensation, shares				485
Unrealized investment loss, net of tax effect	72,252										72,252
Net income	1,819,725							1,819,725
Balance at May. 04, 2019	48,322,893			$ 536,491		10,678,137		49,843,861			446,119			(13,181,716)
Balance, shares at May. 04, 2019				3,860,513
Purchase of treasury stock	(2,551,246)													(2,551,246)
Purchase of treasury stock, shares				(116,193)
Stock-based compensation	1,005					1,005
Unrealized investment loss, net of tax effect	(96,120)										(96,120)
Exercise of employee stock options	27,225					7,515								19,710
Exercise of employee stock options, shares				2,250
Net income	2,543,104							2,543,103
Balance at Aug. 03, 2019	48,246,860			$ 536,491		10,686,657		52,386,965			$ 349,999			(15,713,252)
Balance, shares at Aug. 03, 2019				3,746,570
Balance at Nov. 01, 2019					$ 536,491
Adoption of ASU 2016 (Adoption of ASU 2016-01 [Member]) at Feb. 01, 2020										$ 389,164			$ (389,164)
Adoption of ASU 2016 (Adoption of ASU 2016-02 [Member]) at Feb. 01, 2020			$ (64,591)							(64,591)
Purchase of treasury stock	(345,600)													(345,600)
Purchase of treasury stock, shares				(14,400)
Balance at Feb. 01, 2020	50,457,171			$ 536,491		10,688,568		57,023,464						(17,791,352)
Balance (Adjustments for New Accounting Pronouncement [Member]) at Feb. 01, 2020	49,401,724					10,687,662		55,623,323						(17,445,752)
Balance, shares at Feb. 01, 2020				3,649,670
Balance, shares (Adjustments for New Accounting Pronouncement [Member]) at Feb. 01, 2020				3,664,070
Balance at Nov. 02, 2019	49,466,315	$ 49,466,315					$ 10,687,662		$ 55,298,750			$ 389,164			$ (17,445,752)
Balance (Adjustments for New Accounting Pronouncement [Member]) at Nov. 02, 2019				$ 536,491
Balance, shares at Nov. 02, 2019					3,664,070
Adoption of ASU 2016 (Adoption of ASU 2016-01 [Member]) at Feb. 01, 2020										389,164			$ (389,164)
Adoption of ASU 2016 (Adoption of ASU 2016-02 [Member]) at Feb. 01, 2020			$ (64,591)							$ (64,591)
Stock-based compensation	906					906
Net income	1,400,141							1,400,141
Balance at Feb. 01, 2020	50,457,171			$ 536,491		10,688,568		57,023,464						(17,791,352)
Balance (Adjustments for New Accounting Pronouncement [Member]) at Feb. 01, 2020	49,401,724					10,687,662		55,623,323						(17,445,752)
Balance, shares at Feb. 01, 2020				3,649,670
Balance, shares (Adjustments for New Accounting Pronouncement [Member]) at Feb. 01, 2020				3,664,070
Balance at Nov. 02, 2019	49,466,315	$ 49,466,315					$ 10,687,662		$ 55,298,750			$ 389,164			$ (17,445,752)
Balance (Adjustments for New Accounting Pronouncement [Member]) at Nov. 02, 2019				$ 536,491
Balance, shares at Nov. 02, 2019					3,664,070
Net income	4,110,283
Balance at Aug. 01, 2020	49,066,955			$ 536,491		10,693,648		56,102,636						(18,265,820)
Balance, shares at Aug. 01, 2020				3,631,196
Balance at Feb. 01, 2020	50,457,171			$ 536,491		10,688,568		57,023,464						(17,791,352)
Balance (Adjustments for New Accounting Pronouncement [Member]) at Feb. 01, 2020	49,401,724					10,687,662		55,623,323						(17,445,752)
Balance, shares at Feb. 01, 2020				3,649,670
Cash dividend	(3,630,970)							(3,630,970)
Purchase of treasury stock	(476,850)													(476,850)
Purchase of treasury stock, shares				(18,700)
Stock-based compensation	906					906
Net income	1,550,004							1,550,004
Balance at May. 04, 2020	47,900,261			$ 536,491		10,689,474		54,942,498						(18,268,202)
Balance, shares at May. 04, 2020				3,630,970
Stock-based compensation	6,556					4,174								2,382
Stock-based compensation, shares				226
Net income	1,160,138							1,160,138
Balance at Aug. 01, 2020	$ 49,066,955			$ 536,491		$ 10,693,648		$ 56,102,636						$ (18,265,820)
Balance, shares at Aug. 01, 2020				3,631,196