Liquidity (Details)	Mar. 31, 2019 USD ($)
Liquidity [Line Items]
Total Remaining Unsatisfied Performance Obligations	$ 95,839,840
Liquidity [Member] | Within 1 year [Member]
Liquidity [Line Items]
Total Remaining Unsatisfied Performance Obligations	20,847,051
Liquidity [Member] | 1 to 2 years [Member]
Liquidity [Line Items]
Total Remaining Unsatisfied Performance Obligations	54,546,876
Liquidity [Member] | Thereafter [Memebr]
Liquidity [Line Items]
Total Remaining Unsatisfied Performance Obligations	$ 20,445,913