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Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock	Total
Balance at Dec. 31, 2017	$ 34,626	$ 117,742	$ 142,959	$ 1,479	$ (96,456)	$ 200,350
Increase (Decrease) in Stockholders' Equity
Net income			25,392			25,392
Other comprehensive income, net of tax				(7,856)		(7,856)
Dividends declared and paid			(892)			(892)
Vesting of restricted stock	91	(758)			667
Reclassification of stranded tax effects			(319)	319
Stock based compensation		1,641				1,641
Purchase of treasury stock					(505)	(505)
Balance at Sep. 30, 2018	34,717	118,625	167,140	(6,058)	(96,294)	218,130
Balance at Jun. 30, 2018	34,717	118,082	157,796	(4,487)	(96,294)	209,814
Increase (Decrease) in Stockholders' Equity
Net income			9,642			9,642
Other comprehensive income, net of tax				(1,571)		(1,571)
Dividends declared and paid			(298)			(298)
Stock based compensation		543				543
Balance at Sep. 30, 2018	34,717	118,625	167,140	(6,058)	(96,294)	218,130
Balance at Dec. 31, 2018	34,720	119,081	175,463	(4,079)	(96,104)	229,081
Increase (Decrease) in Stockholders' Equity
Net income			29,919			29,919
Other comprehensive income, net of tax				10,450		10,450
Dividends declared and paid			(896)			(896)
Vesting of restricted stock	103	(389)			286
Stock options exercised	2	7			23	32
Stock warrants exercised		(313)			313
Stock based compensation		1,905				1,905
Purchase of treasury stock					(470)	(470)
Balance at Sep. 30, 2019	34,825	120,291	204,486	6,371	(95,952)	270,021
Balance at Jun. 30, 2019	34,825	119,762	192,612	6,112	(96,047)	257,264
Increase (Decrease) in Stockholders' Equity
Net income			12,173			12,173
Other comprehensive income, net of tax				259		259
Dividends declared and paid			(299)			(299)
Vesting of restricted stock		(135)			135
Stock based compensation		664				664
Purchase of treasury stock					(40)	(40)
Balance at Sep. 30, 2019	$ 34,825	$ 120,291	$ 204,486	$ 6,371	$ (95,952)	$ 270,021

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