Note 16 - Segment Reporting - Reconciliation of Assets by Segment (Details) - USD ($)	Mar. 31, 2020	Jun. 30, 2019
Assets	$ 21,609,086	$ 21,253,608
Corporate headquarters - including Marygold	2,463,797	2,032,671
Accumulated depreciation	(1,328,748)	(1,275,657)
Net property, plant and equipment	1,135,049	757,014
Corporate Segment [Member]
Assets	3,384,400	2,730,805
Corporate headquarters - including Marygold	15,880	14,305
USA Beauty Products and Other [Member]
Assets	4,136,959	3,780,278
Corporate headquarters - including Marygold	14,785	10,745
U.S.A Investment Fund Management [Member]
Assets	10,046,809	10,878,549
Corporate headquarters - including Marygold
New Zealand Food Industry Segment [Member]
Assets	1,984,672	1,838,800
Corporate headquarters - including Marygold	1,541,428	1,659,186
Canada Security Alarm [Member]
Assets	2,056,246	2,025,176
Corporate headquarters - including Marygold	$ 891,704	$ 348,435