Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Feb. 28, 2023	Feb. 28, 2022
Cash flows from operations:
Net income (loss)	$ 342,210	$ (406,489)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Stock based compensation	68,888	69,964
Decrease in obsolete inventory reserves	(27,086)	(140,485)
Gain on disposal of property, plant, and equipment	(2,900)	0
Depreciation and amortization expense	238,903	167,542
Accrued interest on deferred debt payments	0	4,213
Increase (Decrease) in allowance for doubtful accounts	1,502	(11,440)
Deferred income taxes	91,136	(109,039)
Changes in assets and liabilities:
Accounts receivable	(944,999)	1,091,906
Inventories	(966,123)	(349,727)
Other assets	(92,762)	(506,294)
Accounts payable	(128,664)	(183,362)
Contracts in progress, net	701,406	119,397
Customer deposits	1,968,863	1,616,276
Income taxes payable	0	(500)
Accrued expenses	18,223	(193,146)
Net cash provided by operating activities	1,268,597	1,168,816
Cash flows from investing activities:
Purchases of property, plant, and equipment	(313,657)	(174,133)
Net proceeds from sale of assets	2,900	0
Net cash used in investing activities	(310,757)	(174,133)
Cash flows from financing activities:
Net change in line of credit	(868,941)	(924,000)
Principal payments on finance lease obligations	(42,055)	(11,946)
Repayment of term debt	(27,553)	(23,029)
Repurchases of common stock	(20,334)	(34,905)
Net cash used in financing activities	(958,883)	(993,880)
Net increase (decrease) in cash	(1,043)	803
Cash at beginning of period	5,055	2,658
Cash at end of period	4,012	3,461
Supplemental disclosures of cash flow information:
Interest	122,315	69,754
Income taxes	46	0
Amortization of operating lease ROU assets (included in other assets)	$ 3,319	$ 0