Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Deferred Compensation	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning balance at Dec. 31, 2022	$ 633,155,000	$ 86,366,000	$ 427,001,000	$ 289,284,000	$ 2,064,000	$ (151,507,000)	$ (20,053,000)
Net Income (Loss)	19,180,000			19,180,000
Other comprehensive income (loss), net of tax	13,606,000					13,606,000
Cash dividends on common stock	(4,696,000)			(4,696,000)
Issuance of restricted shares pursuant to 2017 stock incentive plan	1,644,000	221,000	1,423,000
Issuance of common shares pursuant to 2017 stock incentive plan	120,000	17,000	103,000
Issuance of common shares pursuant to the employee stock purchase plan	216,000	32,000	184,000
Purchase of treasury shares	(5,000)						(5,000)
Deferred compensation	(1,181,000)				(1,355,000)		174,000
Grant of restricted units pursuant to 2017 stock incentive plan	1,048,000		1,048,000
Release of restricted units pursuant to 2017 stock incentive plan	(1,529,000)		(1,529,000)
Vested restricted shares/units compensation expense	307,000		53,000		254,000
Ending balance at Mar. 31, 2023	661,865,000	86,636,000	428,283,000	303,768,000	963,000	(137,901,000)	(19,884,000)
Beginning balance at Dec. 31, 2023	793,204,000	99,919,000	509,314,000	338,662,000	2,629,000	(136,427,000)	(20,893,000)
Net Income (Loss)	20,503,000			20,503,000
Other comprehensive income (loss), net of tax	(11,240,000)					(11,240,000)
Cash dividends on common stock	(5,471,000)			(5,471,000)
Issuance of restricted shares pursuant to 2017 stock incentive plan, net of forfeitures	1,592,000	191,000	1,401,000
Issuance of common shares pursuant to 2017 stock incentive plan	188,000	22,000	166,000
Issuance of common shares pursuant to the employee stock purchase plan	194,000	34,000	160,000
Deferred compensation	(2,253,000)				(2,288,000)		35,000
Grant of restricted units pursuant to 2017 stock incentive plan	1,311,000		1,311,000
Release of restricted units pursuant to 2017 stock incentive plan	(617,000)		(617,000)
Vested restricted shares/units compensation expense	541,000		50,000		491,000
Ending balance at Mar. 31, 2024	$ 797,952,000	$ 100,166,000	$ 511,785,000	$ 353,694,000	$ 832,000	$ (147,667,000)	$ (20,858,000)