Unaudited Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Dec. 31, 2015	7,500
Beginning balance at Dec. 31, 2015	$ 937	$ 51,608	$ 120,371	$ 2,782	$ 175,698
Net income			6,180		6,180
Other comprehensive income				2,642	2,642
Cash dividends declared – common			(525)		(525)
Shares issued under director compensation plan (in shares)	1
Shares issued under director compensation plan		17			17
Shares issued pursuant to employee stock purchase plan (in shares)	1
Shares issued pursuant to employee stock purchase plan	$ 1	30			31
Expense related to employee stock purchase plan		9			9
Balance (in shares) at Mar. 31, 2016	7,502
Ending balance at Mar. 31, 2016	$ 938	51,664	126,026	5,424	184,052
Balance (in shares) at Dec. 31, 2016	7,509
Beginning balance at Dec. 31, 2016	$ 939	51,885	134,650	(3,408)	184,066
Net income			3,329		3,329
Other comprehensive income				1,013	1,013
Cash dividends declared – common			(751)		(751)
Shares issued under director compensation plan (in shares)	1
Shares issued under director compensation plan		28			28
Shares issued pursuant to employee stock purchase plan (in shares)	2
Shares issued pursuant to employee stock purchase plan		46			46
Expense related to employee stock purchase plan		9			9
Balance (in shares) at Mar. 31, 2017	7,512
Ending balance at Mar. 31, 2017	$ 939	$ 51,968	$ 137,228	$ (2,395)	$ 187,740