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EARNINGS PER SHARE (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
EARNINGS PER SHARE        
Options to purchase shares of common stock outstanding not included in computation of diluted earnings per share because exercise price greater than average market price 364,199 448,256 366,699 448,256