CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Shares outstanding			18,393,888
Common stock options exercised, shares			9,360
Issuance of shares for Employee Stock Purchase Plan, shares	7,120	6,347	13,928	14,772
Shares outstanding	18,190,009		18,190,009
Common Stock [Member]
Shares outstanding	18,370,312	19,034,870	18,393,888	18,974,703
Restricted stock units issued, shares	18,923	21,200	325,607	288,348
Restricted stock units/awards repurchased on vesting to pay taxes, shares	6,446	(7,096)	(74,445)	(71,749)
Cash dividends declared on common stock, per share	$ 0.05	$ 0.05	$ 0.10	$ 0.10
Share repurchase, share	(200,000)	(234,722)	(499,878)	(392,755)
Common stock options exercised, shares	100	2,000	9,360	2,820
Common stock options exercised, used to exercise, shares				62
Common stock options exercised, net of shares used to exercise, shares				2,758
Exercise of warrants, shares		20,000	49,860	40,000
Exercise of warrants, used to exercise, shares		12,722	28,311	26,200
Exercise of warrants, net of shares used to exercise, shares		7,278	21,549	13,800
Issuance of shares for Employee Stock Purchase Plan, shares	7,120	6,347	13,928	14,772
Shares outstanding	18,190,009	18,829,877	18,190,009	18,829,877