Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Feb. 28, 2025	Feb. 29, 2024
Cash flows from operations:
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ (55,757)	$ (424,259)
Net income (loss) on discontinued operations	0	(40,781)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock based compensation	44,219	65,957
Decrease in obsolete inventory reserves	(2,142)	(6,098)
Depreciation and amortization expense	208,072	208,116
Increase (decrease) in allowance for expected credit losses - accounts receivable	(2,399)	391
Deferred income taxes	(15,090)	(124,863)
Changes in assets and liabilities:
Accounts receivable	967,864	385,436
Inventories	(551,027)	54,123
Other assets	(241,923)	(301,491)
Accounts payable	768	(1,109,202)
Contracts in progress, net	(848,475)	858,512
Customer deposits	811,067	670,992
Income taxes payable	(500)	0
Accrued expenses	(446,937)	(375,739)
Net cash used in operating activities - continuing operations	(101,805)	(67,670)
Net cash used in operating activities - discontinued operations	0	(31,604)
Net cash used in operating activities	(101,805)	(99,274)
Cash flows from investing activities:
Purchases of property, plant, and equipment	(82,730)	(281,174)
Net proceeds from sale of assets	0	0
Net cash used in investing activities - continuing operations	(82,730)	(281,174)
Net cash provided by (used in) investing activities - discontinued operations	0	0
Net cash used in investing activities	(82,730)	(281,174)
Cash flows from financing activities:
Net change in line of credit	271,000	466,917
Principal payments on finance lease obligations	(53,968)	(22,769)
Repayment of term debt	(28,682)	(26,489)
Repurchases of common stock	(1,542)	(37,654)
Net cash provided by financing activities - continuing operations	186,808	380,005
Net cash used in financing activities - discontinued operations	0	(1,086)
Net cash provided by financing activities	186,808	378,919
Net increase (decrease) in cash	2,273	(1,529)
Cash at beginning of period	1,860	4,014
Cash at end of period	4,133	2,485
Supplemental disclosures of cash flow information:
Interest	68,031	161,033
Income taxes	0	0
Right-of-use (ROU) assets acquired (included in other assets)	0	38,192
Amortization of operating lease ROU assets (included in other assets)	2,228	2,383
Computer Software, Intangible Asset [Member]
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization of cloud computing implementation costs	$ 30,455	$ 30,455