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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES, Customer Concentration (Details)
3 Months Ended
Mar. 31, 2022
USD ($)
Customer
Mar. 31, 2021
USD ($)
Customer
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Customer Concentration [Abstract]        
Revenue $ 6,391,279 $ 1,620,609    
Contract assets $ 1,687,813   $ 1,056,891 $ 196,701
Revenue Benchmark [Member] | Customer Concentration Risk [Member]        
Customer Concentration [Abstract]        
Number of major customers | Customer 0      
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer One [Member]        
Customer Concentration [Abstract]        
Number of major customers | Customer   1    
Revenue   $ 237,500    
Percentage of revenues generated from customer sales   15.00%    
Contract assets   $ 125,000