Consolidated Statements of Operations - USD ($)	12 Months Ended
	Nov. 30, 2018	Nov. 30, 2017
Income Statement [Abstract]
Net sales	$ 32,372,030	$ 29,775,277
Cost of goods sold	24,088,832	22,264,781
Gross profit	8,283,198	7,510,496
Operating expenses:
Selling and shipping expenses	2,649,456	2,527,599
General and administrative expenses	4,069,823	4,614,802
Depreciation and amortization	48,972	32,114
Total operating expenses	6,768,251	7,174,515
Income before other income and income taxes	1,514,947	335,981
Other (expense) income :
Interest expense	(15,728)	(22,443)
Other income including insurance recovery	603,367	3,107
Other income (expense) :	587,639	(19,336)
Income before income taxes	2,102,586	316,645
Income (benefit) taxes	140,992	(40,821)
Net income	1,961,594	357,466
Dividends on preferred stock	5,000	5,000
Net income available to common shareholders	$ 1,956,594	$ 352,466
Net income per share available to common shareholders:
Basic	$ .37	$ .05
Diluted	$ .37	$ .05
Weighted Shares Outstanding:
Basic	5,226,604	6,498,404
Diluted	5,345,061	6,610,492