Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Feb. 29, 2020	Feb. 28, 2019
Income Statement [Abstract]
Net sales	$ 6,789,138	$ 8,407,342
Cost of goods sold	4,903,362	6,083,782
Gross profit	1,885,776	2,323,560
Operating expenses:
Selling and shipping expenses	656,838	642,896
General and administrative expenses	1,189,240	1,087,037
Depreciation and amortization	9,364	9,578
Total operating expenses	1,855,442	1,739,511
Income before other income and income taxes	30,334	584,049
Other (expense) income:
Interest expense	(567)	(733)
Other income	518	1
Other income (expense):	(49)	(732)
Income before income taxes	30,285	583,317
Income (benefit) taxes	294,087	(110,480)
Net (Loss) income	(263,802)	693,797
Dividends on preferred stock	2,500	2,500
Net (Loss) income available to common shareholders	$ (266,302)	$ 691,297
Net (Loss) income per share available to common shareholders:
Basic	$ (0.05)	$ 0.13
Diluted	$ (0.05)	$ 0.13
Weighted Shares Outstanding:
Basic	5,320,026	5,262,128
Diluted	5,320,026	5,362,128