Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Intangible assets, accumulated amortization	$ 396,339	$ 308,217
Property and equipment, accumulated depreciation and amortization	$ 411,333	$ 391,628
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	20,932,885	20,838,599
Common stock, shares outstanding (in shares)	19,259,834	19,165,548
Treasury stock, shares (in shares)	1,673,051	1,673,051