Accounting Policies - Schedule of Fair Value of Financial Assets Measured on Recurring Basis (Details) - USD ($)	Dec. 31, 2020	Jun. 30, 2020
Revenues in excess of billings - long term	$ 356,059	$ 1,300,289
Total	356,059	1,300,289
Level 1 [Member]
Revenues in excess of billings - long term
Total
Level 2 [Member]
Revenues in excess of billings - long term
Total
Level 3 [Member]
Revenues in excess of billings - long term	356,059	1,300,289
Total	$ 356,059	$ 1,300,289