CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY [Abstract]
Cash dividends, common (in dollars per share)	$ 0.30	$ 0.14	$ 0.06
Exercise of employee stock options, shares for cashless exercise (in shares)	82,004	69,855	111,011
Exercise of employee stock options, shares for taxes (in shares)	23,559	17,762	18,894