Property and Equipment, Net (Schedule of property and equipment) (Details) - USD ($)	Jun. 30, 2025	Jun. 30, 2024
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 6,834,283	$ 7,408,016
Less accumulated depreciation and amortization	(5,320,411)	(5,438,603)
Property and equipment, net	1,513,872	1,969,413
Building [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	4,114,801	4,134,200
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,550,009	2,016,035
Office Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	414,120	414,660
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 755,353	$ 843,121