Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (loss)	$ 277,664	$ (263,802)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	17,131	9,364
Depreciation of operating leases	14,717
Deferred income taxes	42,324	241,576
Allowance for doubtful accounts
CHANGES IN OPERATING ASSETS AND LIABILITIES:
Accounts receivable	717,381	552,274
Inventory	25,426	453,976
Prepaid expenses and income taxes	15,791	144,394
Other assets	(2,580)	(2,580)
Accounts payable	(345,841)	(353,174)
Accrued expenses	(83,209)	(172,316)
NET CASH FLOWS PROVIDED BY OPERATING ACTIVITIES	678,804	609,712
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of fixed assets	(178,473)	(15,343)
NET CASH FLOWS USED IN INVESTING ACTIVITIES	(178,473)	(15,343)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of financing lease obligations	(2,061)	(1,878)
NET CASH FLOWS USED IN FINANCING ACTIVITIES	(2,061)	(1,878)
NET CHANGE IN CASH	498,270	592,491
CASH AT BEGINNING OF PERIOD	4,387,929	2,739,305
CASH AT END OF PERIOD	4,886,199	3,331,796
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Income taxes paid	55,828	47,355
Interest paid	383	567
NONCASH INVESTING AND FINANCING ACTIVITIES:
Accrued dividends on preferred stock	$ 2,500	$ 2,500