CASH FLOW INFORMATION (Details) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
CASH FLOW INFORMATION
Cash paid for interest	$ 6,164,000	$ 4,985,000
Cash paid for state income taxes	52,000	$ 37,000
Non-cash financing activities in connection with acquisition	$ 21,000,000