Annual report pursuant to Section 13 and 15(d)

Revenues in Excess of Billings - Long Term (Details Narrative)

v3.21.2
Revenues in Excess of Billings - Long Term (Details Narrative) - USD ($)
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Interest income $ 53,119 $ 55,344
Interest rate discount   4.35%
Minimum [Member]    
Interest rate discount 4.65%  
Maximum [Member]    
Interest rate discount 6.25%