Note 7 - Intangible and Other Assets, Net - Schedule of Other Assets (Details) - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Other assets, gross	$ 746,163	$ 733,708
Other assets, amortization	567,044	526,054
Other assets, net	179,119	207,654
Deferred Installation Costs [Member]
Other assets, gross	186,838	186,838
Other assets, amortization	100,887	85,297
Other assets, net	85,951	101,541
Deferred Clinical Training Costs [Member]
Other assets, gross	1,920	1,920
Other assets, amortization	1,298	1,138
Other assets, net	622	782
Deferred Sales Commissions [Member]
Other assets, gross	261,282	248,827
Other assets, amortization	225,789	204,647
Other assets, net	35,493	44,180
Prepaid License Fee [Member]
Other assets, gross	249,999	249,999
Other assets, amortization	239,070	234,972
Other assets, net	10,929	15,027
Security Deposits [Member]
Other assets, gross	46,124	46,124
Other assets, amortization	0	0
Other assets, net	$ 46,124	$ 46,124