Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands		Total		Common stock	Retained earnings	Accumulated other comprehensive (loss)
Beginning Balance at Dec. 31, 2014		$ 70,123		$ 58,785	$ 11,195	$ 143
Beginning Balance (in shares) at Dec. 31, 2014				9,227
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		6,918			6,918
Other comprehensive income, net of tax		(553)				(553)
Dividends on common stock		(788)		$ 55	(843)
Common stock issued and related tax effects	[1]	365		$ 365
Common stock issued and related tax effects (in shares)	[1]			45
Ending Balance at Sep. 30, 2015		76,065		$ 59,208	17,270	(410)
Ending Balance (in shares) at Sep. 30, 2015				9,272
Beginning Balance at Jun. 30, 2015						(432)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		2,551
Other comprehensive income, net of tax		22				22
Ending Balance at Sep. 30, 2015		76,065		$ 59,208	17,270	(410)
Ending Balance (in shares) at Sep. 30, 2015				9,272
Beginning Balance at Dec. 31, 2015		$ 78,470		$ 59,371	19,566	(467)
Beginning Balance (in shares) at Dec. 31, 2015		9,280	[2]	9,279
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 10,049			10,049
Other comprehensive income, net of tax		52				52
Dividends on common stock		(1,025)		$ 79	(1,104)
10% Stock dividend paid September 30		0		10,394	(10,394)
Common stock issued and related tax effects	[1]	606		$ 606
Common stock issued and related tax effects (in shares)	[1]			52
Ending Balance at Sep. 30, 2016		$ 88,152		$ 70,450	18,117	(415)
Ending Balance (in shares) at Sep. 30, 2016		9,331	[2]	9,331
Beginning Balance at Jun. 30, 2016						(793)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 3,020
Other comprehensive income, net of tax		378				378
Ending Balance at Sep. 30, 2016		$ 88,152		$ 70,450	$ 18,117	$ (415)
Ending Balance (in shares) at Sep. 30, 2016		9,331	[2]	9,331

[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

[2] Issued and outstanding common shares have been adjusted to account for the 10% stock dividend paid September 30, 2016.