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PER SHARE DATA - Additional Information (Details) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
PER SHARE DATA        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) 39,012 0 19,506 0