Note 16 - Segment Reporting - Reconciliation of Revenue by Segment (Details) - USD ($)		3 Months Ended						9 Months Ended
		Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Mar. 31, 2022	Mar. 31, 2021
Net income (loss)		$ 870,134	$ 1,023,335	$ (1,880,993)	$ 1,582,808	$ 1,351,788	$ 2,219,434	$ 12,476	$ 5,154,031
Capital expenditures		1,664			6,892			5,224	440,608
Corporate Segment [Member]
Capital expenditures		0			0			0	653
USA Beauty Products and Other [Member]
Capital expenditures		988			4,967			1,508	33,724
New Zealand Food Industry Segment [Member]
Capital expenditures	[1]	676			1,182			3,716	417,979
Canada Security Alarm [Member]
Capital expenditures		0			743			0	(11,748)
Operating Segments [Member]
Revenue from Contract with Customer, Including Assessed Tax		8,793,688			9,543,362			27,963,824	30,255,370
Net income (loss)		870,134			1,582,808			12,476	5,154,031
Operating Segments [Member] | U.S.A Investment Fund Management [Member]
Revenue from Contract with Customer, Including Assessed Tax		5,868,558			5,997,085			17,226,969	19,182,801
Net income (loss)		2,322,177			2,588,841			3,939,412	8,087,112
Operating Segments [Member] | Corporate Segment [Member]
Net income (loss)		(1,272,385)			(1,091,648)			(4,169,702)	(3,553,556)
Operating Segments [Member] | USA Beauty Products and Other [Member]
Revenue from Contract with Customer, Including Assessed Tax		702,779			813,084			2,716,702	2,846,052
Net income (loss)		(146,959)			(120,060)			(155,155)	(116,021)
Operating Segments [Member] | New Zealand Food Industry Segment [Member]
Revenue from Contract with Customer, Including Assessed Tax		1,667,345			2,015,529			6,131,791	6,212,698
Net income (loss)		(72,388)			153,847			217,280	485,974
Operating Segments [Member] | Canada Security Alarm [Member]
Revenue from Contract with Customer, Including Assessed Tax		555,006			717,664			1,888,362	2,013,819
Net income (loss)		$ 39,689			$ 51,828			$ 180,641	$ 250,522

[1] Includes $401,681 related to the acquisition of Printstock in July 2020. See Note 15, Business Combinations