Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Shares [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 31, 2018	$ 335,397	$ 1,858	$ 243,165	$ 87,078	$ 3,296
Balance, Shares at Dec. 31, 2018		18,579,688
Cumulative effect adjustment from adoption | ASU 2018-02 [Member]				(938)	938
Cumulative effect adjustment from adoption | ASU 2016-02 [Member]	71			71
Net income	897			897
Other comprehensive loss, net of tax	(2,401)				(2,401)
Share-based compensation	5,685		5,685
Common shares issued, net	4,033	$ 21	4,012
Common shares issued, net, Shares		211,081
Ending Balance at Mar. 31, 2019	343,682	$ 1,879	252,862	87,108	1,833
Balance, Shares at Mar. 31, 2019		18,790,769
Beginning Balance at Dec. 31, 2019	$ 327,631	$ 1,902	271,019	57,749	(3,039)
Balance, Shares at Dec. 31, 2019	19,022,619	19,022,619
Cumulative effect adjustment from adoption | ASU 2016-13 [Member]	$ (887)			(887)
Net income	25,665			25,665
Other comprehensive loss, net of tax	(1,711)				(1,711)
Share-based compensation	3,859		3,859
Common shares issued, net	812	$ 4	808
Common shares issued, net, Shares		33,559
Ending Balance at Mar. 31, 2020	$ 355,369	$ 1,906	$ 275,686	$ 82,527	$ (4,750)
Balance, Shares at Mar. 31, 2020	19,056,178	19,056,178