CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Unaudited) (Parenthetical) - $ / shares
3 Months Ended
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY (Unaudited)            
Cash dividend, per share amount $ 0.02 $ 0.02 $ 0.02 $ 0.02 $ 0.02 $ 0.02
Treasury stock, shares, acquired 188,030 137,630 17,900 24,100