Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended
	Feb. 28, 2019	Feb. 28, 2018
Income Statement [Abstract]
Net sales	$ 8,407,342	$ 6,982,327
Cost of goods sold	6,083,782	5,168,653
Gross profit	2,323,560	1,813,674
Operating expenses:
Selling and shipping expenses	642,896	618,421
General and administrative expenses	1,087,037	1,097,956
Depreciation and amortization	9,578	11,954
Total operating expenses	1,739,511	1,728,331
Income before other income and income taxes	584,049	85,343
Other (expense) income :
Interest expense	(733)	(6,021)
Other income	1	1
Other income (expense) :	(732)	(6,020)
Income before income taxes	583,317	79,323
Income (benefit) taxes	(110,480)	43,766
Net income	693,797	35,557
Dividends on preferred stock	2,500	2,500
Net income available to common shareholders	$ 691,297	$ 33,057
Net income per share available to common shareholders:
Basic	$ 0.13	$ .01
Diluted	$ 0.13	$ .01
Weighted Shares Outstanding:
Basic	5,262,128	5,224,431
Diluted	5,362,128	5,345,145