Note 5 - Property and Equipment, Net - Property and Equipment Summary (Details) - USD ($)	Sep. 30, 2018	Jun. 30, 2018
Plant and equipment, gross	$ 1,984,973	$ 2,010,927
Accumulated depreciation	(987,909)	(930,456)
Total property, plant and equipment, net	997,064	1,080,471
Plant and Equipment [Member]
Plant and equipment, gross	1,467,431	1,487,568
Furniture and Fixtures [Member]
Plant and equipment, gross	174,235	171,978
Vehicles [Member]
Plant and equipment, gross	$ 343,307	$ 351,381

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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