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CASH FLOW INFORMATION (Details) - USD ($)
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
CASH FLOW INFORMATION    
Cash paid for interest $ 6,650,000 $ 6,611,000
Cash paid for state income taxes 60,000 $ 81,000
Non-cash financing activities in connection with acquisition $ 2,393,000