Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($)	Sep. 30, 2025	Jun. 30, 2025
Schedule of Property, Plant and Equipment [Line Items]
Total property, plant and equipment, Gross	$ 58,745,683	$ 58,778,009
Less: accumulated depreciation	(46,926,476)	(46,553,426)
Total	11,819,207	12,224,583
Building and improvements [Member]
Schedule of Property, Plant and Equipment [Line Items]
Total property, plant and equipment, Gross	37,721,186	37,487,544
Auto [Member]
Schedule of Property, Plant and Equipment [Line Items]
Total property, plant and equipment, Gross	2,828,709	2,800,186
Machinery and equipment [Member]
Schedule of Property, Plant and Equipment [Line Items]
Total property, plant and equipment, Gross	$ 18,195,789	$ 18,490,280