Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Feb. 28, 2026	Feb. 28, 2025
Cash flows from operations:
Net income (loss)	$ 196,442	$ (55,757)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Stock based compensation	42,945	44,219
Decrease in obsolete inventory reserves	(136,971)	(2,142)
Gain on disposal of property, plant, and equipment	(4,100)	0
Depreciation and amortization expense	204,591	208,072
Amortization of cloud computing implementation costs	0	30,455
Increase (decrease) in allowance for expected credit losses - receivables	(27,415)	(2,399)
Deferred income taxes	57,712	(15,090)
Changes in assets and liabilities:
Receivables	(1,204,833)	967,864
Inventories	(224,637)	(551,027)
Other assets	(164,838)	(241,923)
Accounts payable	776,680	768
Income taxes payable	0	(500)
Accrued expenses	(364,127)	(446,937)
Net cash provided by (used in) operating activities	148,395	(101,805)
Cash flows from investing activities:
Purchases of property, plant, and equipment	(176,415)	(82,730)
Net proceeds from sale of assets	4,100	0
Net cash used in investing activities	(172,315)	(82,730)
Cash flows from financing activities:
Net change in line of credit	179,500	271,000
Principal payments on finance lease obligations	(62,974)	(53,968)
Principal payments on financed insurance premiums	(54,981)	0
Repayment of term debt	(39,537)	(28,682)
Repurchases of common stock	0	(1,542)
Net cash provided by financing activities	22,008	186,808
Net increase in cash	(1,912)	2,273
Cash at beginning of period	4,849	1,860
Cash at end of period	2,937	4,133
Supplemental disclosures of cash flow information:
Interest	110,282	68,031
Income taxes	1,295	0
Supplemental disclosures of non-cash operating activities:
Financed insurance premium (other current assets)	222,090	0
Amortization of operating lease ROU assets (included in other assets)	0	2,228
Cost and Profit In Excess of Billings [Member]
Changes in assets and liabilities:
Cost and profit in excess of billings	(193,293)	(74,946)
Billings in Excess of Cost and Profit [Member]
Changes in assets and liabilities:
Increase (Decrease) in Contract with Customer, Liability	448,581	(773,529)
Customer Deposits [Member]
Changes in assets and liabilities:
Increase (Decrease) in Contract with Customer, Liability	$ 741,658	$ 811,067