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]
Beginning balance at Nov. 01, 2014	$ 36,549,960	$ 536,491	$ 10,643,866	$ 34,577,682	$ 281,590	$ (9,489,669)
Beginning balance, shares at Nov. 01, 2014		4,063,869
Purchase of treasury stock	$ (360,844)					(360,844)
Purchase of treasury stock, shares	(34,800)	(34,800)
Stock-based compensation	$ 9,287		9,287
Unrealized investment (loss) gain	(33,866)				(33,866)
Exercise of employee stock options	$ 15,820		(2,430)			18,250
Exercise of employee stock options, shares	2,000	2,500
Net income	$ 2,915,395			2,915,395
Ending balance at Oct. 31, 2015	39,095,752	$ 536,491	10,650,723	37,493,077	247,724	(9,832,263)
Ending balance, shares at Oct. 31, 2015		4,031,569
Purchase of treasury stock	$ (458,276)					(458,276)
Purchase of treasury stock, shares	(32,375)	(32,375)
Stock-based compensation	$ 6,530	$ 413	3,470			3,060
Unrealized investment (loss) gain	18,447				18,447
Exercise of employee stock options	$ 38,860		9,155			29,705
Exercise of employee stock options, shares	4,000	4,000
Net income	$ 5,965,194			5,965,194
Ending balance at Nov. 05, 2016	$ 44,666,507	$ 536,491	$ 10,663,348	$ 43,458,271	$ 266,171	$ (10,257,774)
Ending balance, shares at Nov. 05, 2016		4,003,607