CASH FLOW INFORMATION (Details) - USD ($)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
CASH FLOW INFORMATION
Cash paid for interest	$ 9,985,000	$ 9,973,000
Cash paid for state income taxes	70,000	$ 82,000
Non-cash financing activities in connection with acquisition	$ 2,393,000