Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Cash Flows from Operating Activities
Net Income (Loss)	$ (4,401,584)	$ 2,867,629
Adjustments to Reconcile Net Income to Net Cash Used in Operating Activities
Depreciation and Amortization	1,275,078	1,279,870
Gain on the Sale of Property and Equipment	(50,422)	(4,741,096)
Deferred Income Taxes	(1,273,027)	22,000
Changes in Operating Assets and Liabilities
Accounts Receivable, net	699,255	672,847
Contract Assets	(118,301)	0
Inventories, net	1,793,577	(601,450)
Other Current Assets and Prepaid Income Taxes	(28,983)	(585,190)
Accounts Payable	91,739	4,600
Accrued Wages and Salaries	52,568	(47,000)
Other Accrued Expenses	(197,998)	(38,457)
Unearned Revenue and Customer Deposits	226,462	(98,707)
Net Cash Used in Operating Activities	(1,931,636)	(1,264,954)
Cash Flows from Investing Activities
Capital Expenditures	(1,078,367)	(969,943)
Proceeds from the Sale of Property and Equipment	50,422	5,043,240
Proceeds from Short-Term Investments	2,691,000	1,495,000
Purchases of Short-Term Investments	(1,771,120)	(1,445,000)
Net Cash Provided by (Used In) Investing Activities	(108,065)	4,123,297
Cash Flows from Financing Activities
Cash Dividends Paid	(618,325)	(850,196)
Net Cash Used in Financing Activities	(618,325)	(850,196)
Net Increase (Decrease) in Cash and Cash Equivalents	(2,658,026)	2,008,147
Cash and Cash Equivalents
Beginning of Year	4,045,101	2,036,954
End of Year	1,387,075	4,045,101
Cash Paid for Income Taxes	$ 0	$ 1,271,679