SUPPLEMENTAL CASH FLOW INFORMATION

6 Months Ended

Jun. 30, 2018

SUPPLEMENTAL CASH FLOW INFORMATION [Abstract]

SUPPLEMENTAL CASH FLOW INFORMATION

11.SUPPLEMENTAL CASH FLOW INFORMATION

Supplemental cash flow information is as follows:

		Six Months Ended
		June 30,
		2018		2017
Interest paid	$	92,936	$	174,202
Federal, state, and local income taxes (refund) paid, net	$	(234,384)	$	553,123
Change in contract receivables, net	$	(8,633,764)	$	-
Change in contract liabilities, net	$	8,633,764	$	-
Property, plant, and equipment purchases in accounts payable	$	170,340	$	779,257