Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 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, September 30, 2018		13,990,477		22,540		48,694
Increase (decrease)		2,925,757		(9,128)		(19,937)