Note 7 - Intangible and Other Assets, Net - Schedule of Other Assets (Details) - USD ($)	Jun. 30, 2026	Dec. 31, 2025
Other assets, gross	$ 810,363	$ 733,708
Other assets, amortization	602,647	526,054
Other assets, net	207,716	207,654
Deferred Installation Costs [Member]
Other assets, gross	230,721	186,838
Other assets, amortization	113,989	85,297
Other assets, net	116,732	101,541
Deferred Clinical Training Costs [Member]
Other assets, gross	1,920	1,920
Other assets, amortization	1,459	1,138
Other assets, net	461	782
Deferred Sales Commissions [Member]
Other assets, gross	281,599	248,827
Other assets, amortization	244,031	204,647
Other assets, net	37,568	44,180
Prepaid License Fee [Member]
Other assets, gross	249,999	249,999
Other assets, amortization	243,168	234,972
Other assets, net	6,831	15,027
Security Deposits [Member]
Other assets, gross	46,124	46,124
Other assets, amortization	0	0
Other assets, net	$ 46,124	$ 46,124