Unaudited Consolidated Statements of Changes in Shareholders' Equity - 6 months ended Jun. 30, 2021 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Treasury Stock	Common Stock Related to KSOP
Balance at Dec. 31, 2020	$ 166,448	$ 6,529	$ 100,707	$ 53,391	$ 8,310	$ (757)	$ (1,732)
Net income	12,815			12,815
Other comprehensive loss, net of tax	(4,603)				(4,603)
Exercise of stock options	137	9	128
Purchase of treasury stock	(440)					(440)
Sale of treasury shares	1,181		(9)			1,190
Dividends declared	(2,612)			(2,612)
Stock-based compensation expense	92		92
Change for KSOP related shares	(941)						(941)
Balance at Jun. 30, 2021	$ 172,077	$ 6,538	$ 100,918	$ 63,594	$ 3,707	$ (7)	$ (2,673)