CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Stockholders' Equity, Total	Total
Equity Balance at Dec. 31, 2020	$ 138	$ 35,004	$ 541,448	$ 53,151		$ 629,741
Net income			18,868			18,868
Stock issued under Stock Option Plan		657			$ 263	920
Common dividends declared			(4,656)			(4,656)
Change in fair value of cash flow hedges				(1,546)		(1,546)
Change in unrealized loss on available-for-sale securities				(13,915)		(13,915)
Purchase of the Company's common stock					(3,780)	(3,780)
Reclassification of treasury stock per Maryland law	(1)		(3,516)		3,517
Equity Balance (CECL adoption) at Mar. 31, 2021			(14,175)			(14,175)
Equity Balance at Mar. 31, 2021	137	35,661	537,969	37,690		611,457
Equity Balance at Dec. 31, 2021	131	38,314	545,548	32,759		616,752
Net income			16,987			16,987
Stock issued under Stock Option Plan		1,690			1,116	2,806
Common dividends declared			(4,599)			(4,599)
Change in fair value of cash flow hedges				(4,630)		(4,630)	$ (3,083)
Change in unrealized gain on held-to-maturity securities				759		759
Change in unrealized loss on available-for-sale securities				(20,205)		(20,205)
Purchase of the Company's common stock					(25,319)	(25,319)
Reclassification of treasury stock per Maryland law	(3)		(24,200)		$ 24,203
Equity Balance at Mar. 31, 2022	$ 128	$ 40,004	$ 533,736	$ 8,683		$ 582,551