4. SUPPLEMENTAL CASH FLOW INFORMATION (Details) - Supplemental Cash Flow Information - USD ($)	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Supplemental Cash Flow Information [Abstract]
Interest	$ 516,984	$ 609,004
Federal, state and local income taxes,
net of refunds	5,541,408	901,852
Fixed asset purchases in accounts payable	$ 430,594	$ 171,038