Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

Summary of Significant Accounting Policies

Schedule of balances of contract receivables and liabilities

Contract Balances
	Net Receivables		Contract Liabilities, Current		Contract Liabilities, Long-Term
Opening, January 1, 2018	$	11,064,720	$	31,668	$	68,631
Closing, June 30, 2018		12,358,984		27,338		55,340
Increase/(decrease)		1,294,264		(4,330)		(13,291)