Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	May 31, 2023	May 31, 2022
Cash flows from operations:
Net income (loss)	$ 648,874	$ (231,136)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Stock based compensation	137,638	157,465
Decrease in obsolete inventory reserves	(25,899)	(197,613)
Gain on disposal of property, plant, and equipment	(97,616)	3,971
Depreciation and amortization expense	488,806	350,435
Accrued interest on deferred debt payments	0	8,520
Increase (Decrease) in allowance for doubtful accounts	1,986	(3,127)
Deferred income taxes	167,213	(63,744)
Changes in assets and liabilities:
Accounts receivable	(1,216,037)	185,551
Inventories	(744,760)	(1,479,479)
Other assets	120,158	(619,103)
Accounts payable	(373,908)	787,195
Contracts in progress, net	583,259	(541,716)
Customer deposits	(266,745)	1,541,000
Income taxes payable	1,500	(500)
Accrued expenses	(47,941)	(178,916)
Net cash provided in operating activities	(623,472)	(281,197)
Cash flows from investing activities:
Purchases of property, plant, and equipment	(639,833)	(509,097)
Net proceeds from sale of assets	286,815	9,300
Net cash used in investing activities	(353,018)	(499,797)
Cash flows from financing activities:
Net change in line of credit	779,559	628,695
Proceeds from finance lease obligations	397,536	350,000
Principal payments on finance lease obligations	(89,839)	(38,317)
Repayment of term debt	(49,528)	(47,289)
Cost of equity issuance	0	(17,346)
Repurchases of common stock	(63,995)	(92,432)
Net cash used in financing activities	973,733	783,311
Net increase (decrease) in cash	(2,757)	2,317
Cash at beginning of period	5,055	2,658
Cash at end of period	2,298	4,975
Supplemental disclosures of cash flow information:
Interest	268,997	155,385
Income taxes	2,841	800
Supplemental disclosures of non-cash operating activities:
Right-of-use (ROU) assets acquired (included in other assets)	117,302	389,300
Common stock purchase agreement shares issued (included in other assets)	0	117,200
Amortization of operating lease ROU assets (included in other assets)	$ 5,820	$ 6,349