CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Shares	Retained Earnings	Treasury Shares	Accumulated Other Comprehensive Income (Loss)
Balance (in shares) at Dec. 31, 2019		12,936,783
Balance at beginning of year at Dec. 31, 2019	$ 228,048	$ 141,791	$ 104,431	$ (18,847)	$ 673
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	20,075	0	20,075	0	0
Other comprehensive income, net of taxes	3,370	$ 0	0	0	3,370
Dividend Reinvestment and Stock Purchase Plan (in shares)		26,840
Dividend Reinvestment and Stock Purchase Plan	401	$ 401	0	0	0
Exercise of stock options (in shares)		9,593
Exercise of stock options	114	$ 114	0	0	0
Treasury Stock, Shares, Acquired		130,552
Payments for Repurchase of Common Stock	1,872	$ 0	0	1,872	0
Compensation expense relating to restricted stock (in shares)		15,661
Compensation expense relating to restricted stock	137	$ 137	0	0	0
Dividends, Common Stock, Stock		0
Dividends, Common Stock, Cash	(9,448)	$ 0	(9,448)	0	0
Balance (in shares) at Dec. 31, 2020		12,858,325
Balance at end of year at Dec. 31, 2020	240,825	$ 142,443	115,058	(20,719)	4,043
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	20,974	0	20,974	0	0
Other comprehensive income, net of taxes	(5,852)	$ 0	0	0	(5,852)
Dividend Reinvestment and Stock Purchase Plan (in shares)		24,012
Dividend Reinvestment and Stock Purchase Plan	434	$ 434	0	0	0
Exercise of stock options (in shares)		311
Exercise of stock options	4	$ 4	0	0	0
Treasury Stock, Shares, Acquired		493,257
Payments for Repurchase of Common Stock	8,310	$ 0	0	8,310	0
Compensation expense relating to restricted stock (in shares)		25,565
Compensation expense relating to restricted stock	249	$ 249	0	0	0
Dividends, Common Stock, Stock		0
Dividends, Common Stock, Cash	$ (9,720)	$ 0	(9,720)	0	0
Balance (in shares) at Dec. 31, 2021	12,414,956	12,414,956
Balance at end of year at Dec. 31, 2021	$ 238,604	$ 143,130	126,312	(29,029)	(1,809)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	22,128	0	22,128	0	0
Other comprehensive income, net of taxes	(28,145)	$ 0	0	0	(28,145)
Dividend Reinvestment and Stock Purchase Plan (in shares)		24,204
Dividend Reinvestment and Stock Purchase Plan	408	$ 408	0	0	0
Treasury Stock, Shares, Acquired		1,212,634
Payments for Repurchase of Common Stock	23,660	$ 0	0	23,660	0
Compensation expense relating to restricted stock (in shares)		32,554
Compensation expense relating to restricted stock	531	$ 531	0	0	0
Dividends, Common Stock, Stock		0
Dividends, Common Stock, Cash	$ (9,191)	$ 0	(9,191)	0	0
Balance (in shares) at Dec. 31, 2022	11,259,080	11,259,080
Balance at end of year at Dec. 31, 2022	$ 200,675	$ 144,069	$ 139,249	$ (52,689)	$ (29,954)