Note 5 - Property, Plant and Equipment - Property and Equipment Summary (Details) - USD ($)		Mar. 31, 2022	Jun. 30, 2021
Plant and equipment, gross		$ 3,559,842	$ 3,420,886
Accumulated depreciation (2)	[1]	(2,000,690)	(1,847,441)
Total property and equipment, net		1,559,152	1,573,445	[2]
Plant and Equipment [Member]
Plant and equipment, gross	[3]	2,277,545	2,147,617
Furniture and Fixtures [Member]
Plant and equipment, gross		248,180	246,697
Vehicles [Member]
Plant and equipment, gross		425,396	613,891
Land and Building [Member]
Plant and equipment, gross		$ 608,721	$ 412,681

[1] Included with accumulated depreciation is the amortization of the underlying assets of the solar energy finance lease at Gourmet Foods, which totaled $4,214 as of March 31, 2022.

[2] Derived from audited financial statements

[3] Included with plant and equipment as of March 31, 2022 are the underlying assets of the solar energy finance lease stated at present value as of the date of acquisition by Gourmet Foods totaling $153,807.