Note 1 - Description of Business and Significant Accounting Policies (Details Textual)	12 Months Ended
	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares
Number of Operating Segments	4
Cash and Cash Equivalents, at Carrying Value	$ 2,688,141	$ 2,375,817
Accounts Receivable, Allowance for Credit Loss, Current	0	0
Inventory Write-down	0	0
Goodwill, Impairment Loss	0	0
Impairment of Intangible Assets, Finite-Lived	(0)	0
Impairment, Long-Lived Asset, Held-for-Use	0	0
Advertising Expense	142,188	118,465
Research and Development Expense	577,354	533,716
Share-Based Payment Arrangement, Expense	$ 464,041	$ 352,458
Share-Based Payment Arrangement, Option [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares	24,787,500	24,993,500
Series C Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares	4,063,000	4,063,000
Asset Pledged as Collateral [Member] | Surety Bond [Member]
Money Market Funds, at Carrying Value	$ 880,752	$ 840,049