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 | | | | |
Purchase of treasury stock | (94,500) | | | | | (94,500) |
Purchase of treasury stock, shares | | (4,500) | | | | |
Stock-based compensation | 441 | | 441 | | | |
Unrealized investment gain (loss), net of tax effect | 22,347 | | | | 22,347 | |
Net income | 1,016,236 | | | 1,016,236 | | |
Balance at Feb. 03, 2018 | 48,358,821 | $ 536,491 | 10,669,672 | 47,183,764 | 434,580 | (10,465,686) |
Balance, shares at Feb. 03, 2018 | | 3,993,069 | | | | |
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 | | | | |
Purchase of treasury stock, shares | (123,838) | | | | | |
Unrealized investment gain (loss), net of tax effect | $ (50,556) | | | | | |
Net income | 3,399,925 | | | | | |
Balance at Aug. 04, 2018 | 47,473,623 | $ 536,491 | 10,670,407 | 48,788,839 | 361,677 | (12,883,791) |
Balance, shares at Aug. 04, 2018 | | 3,873,731 | | | | |
Balance at Feb. 03, 2018 | 48,358,821 | $ 536,491 | 10,669,672 | 47,183,764 | 434,580 | (10,465,686) |
Balance, shares at Feb. 03, 2018 | | 3,993,069 | | | | |
Cash dividend | (778,614) | | | (778,614) | | |
Purchase of treasury stock | (2,410,500) | | | | | (2,410,500) |
Purchase of treasury stock, shares | | (119,000) | | | | |
Stock-based compensation | 441 | | 441 | | | |
Unrealized investment gain (loss), net of tax effect | (67,856) | | | | (67,856) | |
Net income | 1,135,605 | | | 1,135,605 | | |
Balance at May. 05, 2018 | 46,237,897 | $ 536,491 | 10,670,113 | 47,540,755 | 366,724 | (12,876,186) |
Balance, shares at May. 05, 2018 | | 3,874,069 | | | | |
Purchase of treasury stock | (7,605) | | | | | (7,605) |
Purchase of treasury stock, shares | | (338) | | | | |
Stock-based compensation | 294 | | 294 | | | |
Unrealized investment gain (loss), net of tax effect | (5,046) | | | | (5,047) | |
Net income | 1,248,084 | | | 1,248,084 | | |
Balance at Aug. 04, 2018 | 47,473,623 | $ 536,491 | 10,670,407 | 48,788,839 | 361,677 | (12,883,791) |
Balance, shares at Aug. 04, 2018 | | 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 | | | | |
Stock-based compensation | 750 | | 750 | | | |
Unrealized investment gain (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 | | | | |
Purchase of treasury stock, shares | (129,896) | | | | | |
Unrealized investment gain (loss), net of tax effect | $ (40,408) | | | | | |
Net income | 5,898,635 | | | | | |
Balance at Aug. 03, 2019 | 48,246,860 | | 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 gain (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 gain (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 | | $ 10,686,657 | $ 52,386,965 | $ 349,999 | $ (15,713,252) |
Balance, shares at Aug. 03, 2019 | | 3,746,570 | | | | |