CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total
Beginning Balance at Dec. 31, 2018	$ 14,857	$ 278,659	$ 71,998	$ (1,796)	$ (464)	$ 363,254
Beginning Balance (in shares) at Dec. 31, 2018	14,857,092				(26,494)
Net income			19,618			19,618
Common stock repurchased					$ (4,442)	(4,442)
Common stock repurchased (in shares)					(143,566)
Other comprehensive income				11,235		11,235
Dividends on common stock			(2,385)			(2,385)
Issuance of common shares for FPB acquisition	$ 2,378	75,842				78,220
Issuance of common shares for FPB acquisition (in shares)	2,377,501
Issuance of restricted stock grant	$ 67	(67)
Issuance of restricted stock grant(in shares)	66,882
Restricted stock grant forfeited	$ (2)	2
Restricted stock grant forfeited (in shares)	(1,500)
Compensation expense		781				781
Ending Balance at Jun. 30, 2019	$ 17,300	355,217	89,231	9,439	$ (4,906)	466,281
Ending Balance (in shares) at Jun. 30, 2019	17,299,975				(170,060)
Beginning Balance at Mar. 31, 2019	$ 17,299	354,792	78,594	4,126	$ (464)	454,347
Beginning Balance (in shares) at Mar. 31, 2019	17,299,225				(26,494)
Net income	$ 0	0	11,983	0	$ 0	11,983
Common stock repurchased	0	0	0	0	$ (4,442)	(4,442)
Common stock repurchased (in shares)					(143,566)
Other comprehensive income	0	0	0	5,313	$ 0	5,313
Dividends on common stock	0	0	(1,346)	0	0	(1,346)
Issuance of restricted stock grant	$ 1	(1)	0	0	0	0
Issuance of restricted stock grant(in shares)	750
Compensation expense	$ 0	426	0	0	0	426
Ending Balance at Jun. 30, 2019	$ 17,300	355,217	89,231	9,439	$ (4,906)	466,281
Ending Balance (in shares) at Jun. 30, 2019	17,299,975				(170,060)
Beginning Balance at Dec. 31, 2019	$ 18,997	409,805	110,460	10,089	$ (5,693)	543,658
Beginning Balance (in shares) at Dec. 31, 2019	18,996,948				(194,682)
Net income			25,254			25,254
Other comprehensive income			(4,016)	14,461		14,461
Dividends on common stock						(4,016)
Issuance of common shares for SWG acquisition	$ 2,547	45,311				47,858
Issuance of common shares for SWG acquisition (in shares)	2,546,967
Repurchase of restricted stock for payment of taxes	$ (14)	(423)				(437)
Repurchase of restricted stock for payment of taxes (in shares)	(13,643)
Issuance of restricted stock grant	$ 65	(65)
Issuance of restricted stock grant(in shares)	64,430
Restricted stock grant forfeited	$ (5)	5
Restricted stock grant forfeited (in shares)	(4,762)
Compensation expense		1,017				1,017
Ending Balance at Jun. 30, 2020	$ 21,590	455,650	131,698	24,550	$ (5,693)	627,795
Ending Balance (in shares) at Jun. 30, 2020	21,589,940				(194,682)
Beginning Balance at Mar. 31, 2020	$ 19,047	409,855	116,886	15,831	$ (5,693)	555,926
Beginning Balance (in shares) at Mar. 31, 2020	19,046,637				(194,682)
Net income	$ 0	0	16,943	0	$ 0	16,943
Common stock repurchased	0	0	0	0	$ 0	0
Common stock repurchased (in shares)					0
Other comprehensive income	0	0	0	8,719	$ 0	8,719
Dividends on common stock	0	0	(2,131)	0	0	(2,131)
Issuance of common shares for SWG acquisition	$ 2,547	45,311	0	0	0	47,858
Issuance of common shares for SWG acquisition (in shares)	2,546,967
Repurchase of restricted stock for payment of taxes	$ (3)	(56)	0	0	0	(59)
Repurchase of restricted stock for payment of taxes (in shares)	(2,652)
Issuance of restricted stock grant	$ 4	(4)	0	0	0	0
Issuance of restricted stock grant(in shares)	3,750
Restricted stock grant forfeited	$ (5)	5	0	0	0	0
Restricted stock grant forfeited (in shares)	(4,762)
Compensation expense	$ 0	539	0	0	0	539
Ending Balance at Jun. 30, 2020	$ 21,590	$ 455,650	$ 131,698	$ 24,550	$ (5,693)	$ 627,795
Ending Balance (in shares) at Jun. 30, 2020	21,589,940				(194,682)