Note 14 - Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Partner Company Ownership Interest [Table Text Block]

	Safeguard Primary Ownership as of December 31,
Company Name	2020			2019			Accounting Method
Aktana, Inc.		15.1	%		17.8	%	Equity
Clutch Holdings, Inc.		42.3	%		41.2	%	Equity
Flashtalking, Inc.		13.4	%		10.1	%	Other
InfoBionic, Inc.		25.2	%		25.2	%	Equity
Lumesis, Inc.		43.4	%		43.5	%	Equity
MediaMath, Inc.		13.3	%		13.3	%	Other
meQuilibrium		32.0	%		32.7	%	Equity
Moxe Health Corporation		27.6	%		29.9	%	Equity
Prognos Health Inc.		28.5	%		28.7	%	Equity
QuanticMind, Inc. *		24.2	%		24.2	%	Equity
Syapse, Inc.		18.9	%		20.0	%	Equity
T-REX Group, Inc.		13.5	%		13.7	%	Other
Trice Medical, Inc.		16.6	%		16.6	%	Equity
WebLinc, Inc. *		39.9	%		38.5	%	Equity
Zipnosis, Inc		37.2	%		37.7	%	Equity