Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive (Loss) Income, Net of Taxes	Retained Earnings	Treasury Stock	Total
Balance at Dec. 31, 2022	$ 179	$ 222,049	$ (80,538)	$ 815,309	$ (145,000)	$ 811,999
Net Income (Loss)				18,875		18,875
Unrealized gains and losses on securities available for sale, net of deferred federal income taxes			27,347			27,347
Recognition of employee share-based compensation		4,331				4,331
Dividends paid and accrued				(52,992)		(52,992)
Acquisition of treasury stock					(5,293)	(5,293)
Balance at Dec. 31, 2023	179	226,380	(53,191)	781,192	(150,293)	804,267
Net Income (Loss)				70,734		70,734
Unrealized gains and losses on securities available for sale, net of deferred federal income taxes			2,144			2,144
Restricted share awards issued	1					1
Recognition of employee share-based compensation		4,484				4,484
Dividends paid and accrued				(53,166)		(53,166)
Balance at Dec. 31, 2024	180	230,864	(51,047)	798,760	(150,293)	828,464
Net Income (Loss)				99,255		99,255
Unrealized gains and losses on securities available for sale, net of deferred federal income taxes			33,914			33,914
Restricted share awards issued	1					1
Recognition of employee share-based compensation		4,829				4,829
Dividends paid and accrued				(53,952)		(53,952)
Acquisition of treasury stock					(20,200)	(20,200)
Balance at Dec. 31, 2025	$ 181	$ 235,693	$ (17,133)	$ 844,063	$ (170,493)	$ 892,311