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BASIC AND DILUTED INCOME PER SHARE (Details) - shares
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
BASIC AND DILUTED INCOME PER SHARE        
Outstanding stock options included in the calculation of diluted EPS 0 9,000 0 9,000
Outstanding stock options 0   0  
Antidilutive securities excluded from computation of earnings per share   0   0