CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total
Balance at beginning of period at Dec. 31, 2022	$ 122	$ 42,445	$ 543,875	$ (53,355)		$ 533,087
Net income			38,776			38,776
Stock issued under Stock Option Plan		847			$ 204	1,051
Common cash dividends declared			(9,641)			(9,641)
Change in fair value of cash flow hedges				(2,884)		(2,884)
Change in unrealized loss on held-to-maturity securities				(54)		(54)
Change in unrealized (loss) gain on available-for-sale securities				283		283
Purchase of the Company's common stock					(14,289)	(14,289)
Reclassification of treasury stock per Maryland law	(2)		(14,083)		14,085
Balance at ending of period at Jun. 30, 2023	120	43,292	558,927	(56,010)		546,329
Balance at beginning of period at Mar. 31, 2023	121	42,870	553,948	(41,428)		555,511
Net income			18,320			18,320
Stock issued under Stock Option Plan		422			159	581
Common cash dividends declared			(4,788)			(4,788)
Change in fair value of cash flow hedges				(7,913)		(7,913)
Change in unrealized loss on held-to-maturity securities				(37)		(37)
Change in unrealized (loss) gain on available-for-sale securities				(6,632)		(6,632)
Purchase of the Company's common stock					(8,713)	(8,713)
Reclassification of treasury stock per Maryland law	(1)		(8,553)		8,554
Balance at ending of period at Jun. 30, 2023	120	43,292	558,927	(56,010)		546,329
Balance at beginning of period at Dec. 31, 2023	118	44,320	569,872	(42,481)		571,829
Net income			30,395			30,395
Stock issued under Stock Option Plan		1,001			428	1,429
Common cash dividends declared			(9,313)			(9,313)
Change in fair value of cash flow hedges				(6,102)		(6,102)
Change in unrealized loss on held-to-maturity securities				(73)		(73)
Change in unrealized (loss) gain on available-for-sale securities				(6,789)		(6,789)
Purchase of the Company's common stock					(12,361)	(12,361)
Reclassification of treasury stock per Maryland law	(2)		(11,931)		11,933
Balance at ending of period (Accounting Standards Update 2023-02) at Jun. 30, 2024			(223)			(223)
Balance at ending of period at Jun. 30, 2024	116	45,321	578,800	(55,445)		568,792
Balance at beginning of period at Mar. 31, 2024	117	44,807	572,747	(52,509)		565,162
Net income			16,988			16,988
Stock issued under Stock Option Plan		514			224	738
Common cash dividends declared			(4,634)			(4,634)
Change in fair value of cash flow hedges				(1,570)		(1,570)
Change in unrealized loss on held-to-maturity securities				(37)		(37)
Change in unrealized (loss) gain on available-for-sale securities				(1,329)		(1,329)
Purchase of the Company's common stock					(6,526)	(6,526)
Reclassification of treasury stock per Maryland law	(1)		(6,301)		$ 6,302
Balance at ending of period (Accounting Standards Update 2023-02) at Jun. 30, 2024			(223)			(223)
Balance at ending of period at Jun. 30, 2024	$ 116	$ 45,321	$ 578,800	$ (55,445)		$ 568,792