CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY [Abstract]
Cash dividends, common (in dollars per share)	$ 0.09	$ 0.03	$ 0.21	$ 0.09
Exercise of employee stock options, shares for cashless exercise (in shares)			2,906	17,178
Exercise of employee stock options, shares for taxes (in shares)			5,013	7,608