Note 2 - Ownership Interests and Advances - Schedule of Ownership Interests (Details)	Dec. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2021
Aktana, Inc. [Member]
Ownership Interest	13.60%	13.40%
Clutch Holdings [Member]
Ownership Interest	41.70%	41.70%
InfoBionic, Inc. [Member]
Ownership Interest	25.20%	25.20%
meQuilibrium [Member]
Ownership Interest	31.30%	31.90%
Moxe Health Corporation [Member]
Ownership Interest	19.30%	27.60%
Prognos Health, Inc. [Member]
Ownership Interest	28.40%	28.50%
Syapse, Inc. [Member]
Ownership Interest	11.00%	11.10%		11.10%
Trice Medical, Inc. [Member]
Ownership Interest	11.60%	12.60%	12.60%