Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2015

Accounts Receivable [Abstract]

Summary of accounts receivable

	2015			2014
Billed:
SG block sales	$	82,200		$	172,837
Engineering services		14,181			2,000
Project management		14,400			15,842
Total gross receivables		110,781			190,679
Less: allowance for doubtful accounts		(24,746	)		(24,746	)
Total net receivables	$	86,035		$	165,933