12. SUPPLEMENTAL CASH FLOW INFORMATION (Tables)

12 Months Ended

Dec. 31, 2016

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flow Information Related Text

	Years Ended December 31,
	2016		2015		2014
Interest paid	$	606,697	$	724,651	$	856,578
Federal, state and local income taxes paid - net of refunds	$	339,625	$	5,568,581	$	972,645
Fixed asset purchases in accounts payable	$	216,523	$	92,903	$	85,488