Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Allowance for doubtful accounts	$ 3,000	$ 3,000
Building and improvements [Member] | Lower Range [Member]
Estimated useful lives of depreciated assets	10 years
Building and improvements [Member] | Upper Range [Member]
Estimated useful lives of depreciated assets	50 years
Machinery and equipment [Member] | Lower Range [Member]
Estimated useful lives of depreciated assets	3 years
Machinery and equipment [Member] | Upper Range [Member]
Estimated useful lives of depreciated assets	20 years
Furniture and fixtures [Member] | Lower Range [Member]
Estimated useful lives of depreciated assets	7 years
Furniture and fixtures [Member] | Upper Range [Member]
Estimated useful lives of depreciated assets	10 years