Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Feb. 28, 2022	Feb. 28, 2021
Statement of Cash Flows [Abstract]
Net Income	$ 671,753	$ 277,664
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	18,770	17,131
Deferred income taxes	140,152	42,324
Allowance for doubtful accounts
CHANGES IN OPERATING ASSETS AND LIABILITIES:
Accounts receivable	585,517	717,381
Inventory	(710,682)	25,426
Prepaid expenses and income taxes	220,833	15,791
Other assets	10,747	12,137
Accounts payable	(945,269)	(345,841)
Accrued expenses	(229,971)	(83,209)
NET CASH FLOWS (USED IN) PROVIDED BY OPERATING ACTIVITIES	(238,150)	678,804
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of fixed assets	(21,008)	(178,473)
NET CASH FLOWS USED IN INVESTING ACTIVITIES	(21,008)	(178,473)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of financing lease obligations	(2,196)	(2,061)
NET CASH FLOWS USED IN FINANCING ACTIVITIES	(2,196)	(2,061)
NET CHANGE IN CASH	(261,354)	498,270
CASH AT BEGINNING OF PERIOD	6,511,588	4,387,929
CASH AT END OF PERIOD	6,250,234	4,886,199
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Income taxes paid		55,828
Interest paid	182	383
NONCASH INVESTING AND FINANCING ACTIVITIES:
Accrued dividends on preferred stock	$ 2,500	$ 2,500