Note 15 - Segment Reporting - Reconciliation of Assets by Segment (Details) - USD ($)	Jun. 30, 2020	Jun. 30, 2019
Identifiable assets	$ 24,424,325	$ 21,253,608
Property, plant, and equipment	2,684,985	2,032,671
Accumulated depreciation	(1,487,793)	(1,275,657)
Net property, plant and equipment	1,197,192	757,014
Corporate Segment [Member]
Identifiable assets	3,024,690	2,730,805
Property, plant, and equipment	17,091	14,305
U.S.A Investment Fund Management [Member]
Identifiable assets	12,834,581	10,878,549
Property, plant, and equipment
USA Beauty Products and Other [Member]
Identifiable assets	3,611,471	3,780,278
Property, plant, and equipment	16,987	10,745
New Zealand Food Industry Segment [Member]
Identifiable assets	2,606,256	1,838,800
Property, plant, and equipment	1,721,195	1,659,186
Canada Security Alarm [Member]
Identifiable assets	2,347,327	2,025,176
Property, plant, and equipment	$ 929,712	$ 348,435