Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands		Total	Stock	Retained earnings	Accumulated other comprehensive income (loss)	Treasury stock
Beginning Balance at Dec. 31, 2018		$ 138,488	$ 88,484	$ 50,161	$ (157)
Beginning Balance (in shares) at Dec. 31, 2018			10,780
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		5,740		5,740
Other comprehensive loss, net of tax		(50)			(50)
Dividends on common stock		(730)	$ 26	(756)
Common stock issued and related tax effects	[1]	269	$ 269
Common stock issued and related tax effects (in shares)	[1]		42
Ending Balance at Mar. 31, 2019		143,717	$ 88,779	55,145	(207)
Ending Balance (in shares) at Mar. 31, 2019			10,822
Beginning Balance at Dec. 31, 2019		$ 160,709	$ 90,113	70,442	154	$ 0
Beginning Balance (in shares) at Dec. 31, 2019		10,881	10,881
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 5,368		5,368
Other comprehensive loss, net of tax		(986)			(986)
Dividends on common stock		(841)	$ 30	(871)
Common stock issued and related tax effects	[1]	227	$ 227
Common stock issued and related tax effects (in shares)	[1]		13
Acquisition of treasury stock, at cost (in shares)			(11)
Acquisition of treasury stock, at cost		(172)				(172)
Ending Balance at Mar. 31, 2020		$ 164,305	$ 90,198	$ 74,939	$ (832)	$ (172)
Ending Balance (in shares) at Mar. 31, 2020		10,883	10,883

[1] Includes the issuance of common stock under employee benefit plans, which includes nonqualified stock options and restricted stock expense related entries, employee option exercises and the tax benefit of options exercised.