CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - (UNAUDITED) - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income
Balance at Dec. 31, 2018	$ 151,760	$ 90,621	$ 62,891	$ (1,752)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	7,022		7,022
Other comprehensive income (loss)	5,882			5,882
Redeemed stock	(1,620)	(1,620)
Common stock dividends declared	(618)		(618)
Exercise of stock options	156	156
Stock-based compensation expense, net of tax impact	285	285
Balance at Jun. 30, 2019	162,867	89,442	69,295	4,130
Balance at Mar. 31, 2019	156,119	89,753	66,049	317
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	3,555		3,555
Other comprehensive income (loss)	3,813			3,813
Redeemed stock	(516)	(516)
Common stock dividends declared	(309)		(309)
Exercise of stock options	31	31
Stock-based compensation expense, net of tax impact	174	174
Balance at Jun. 30, 2019	162,867	89,442	69,295	4,130
Balance at Dec. 31, 2019	170,703	89,345	77,766	3,592
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,831		6,831
Other comprehensive income (loss)	3,668			3,668
Redeemed stock	(620)	(620)
Common stock dividends declared	(773)		(773)
Exercise of stock options	95	95
Stock-based compensation expense, net of tax impact	355	355
Balance at Jun. 30, 2020	180,259	89,175	83,824	7,260
Balance at Mar. 31, 2020	175,768	88,910	81,489	5,369
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,721		2,721
Other comprehensive income (loss)	1,891			1,891
Common stock dividends declared	(386)		(386)
Exercise of stock options	34	34
Stock-based compensation expense, net of tax impact	231	231
Balance at Jun. 30, 2020	$ 180,259	$ 89,175	$ 83,824	$ 7,260