Quarterly report pursuant to Section 13 or 15(d)

Liquidity (Details)

v3.21.2
Liquidity (Details)
Jun. 30, 2021
USD ($)
Liquidity [Line Items]  
Total Backlog $ 21,035,831
Within 1 year [Member]  
Liquidity [Line Items]  
Total Backlog 8,179,581
1 to 2 years [Member]  
Liquidity [Line Items]  
Total Backlog $ 12,856,250