Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Capital Stock [Member]	Retained earnings [Member]	Accumulated other comprehensive income [Member]	Total
Balance (value) at Dec. 31, 2013	$ 25,302	$ 39,519	$ 1,239	$ 66,060
Balance (shares) at Dec. 31, 2013	2,391,617
Net income		4,714		4,714
Other comprehensive income (loss)			1,410	1,410
Issuance of common stock through Employee Stock Purchase Plan	$ 80			80
Issuance of common stock, shares, through Employee Stock Purchase Plan	4,373
Issuance of common stock through Dividend Reinvestment Plan	$ 448			448
Issuance of common stock, shares, through Dividend Reinvestment Plan	18,347
Issuance of common stock, shares, from vested restricted share grants through stock compensation plans	5,250
Stock-based compensation expense	$ 162			162
Cash dividends declared		(1,816)		(1,816)
Balance (shares) at Sep. 30, 2014	2,419,587
Balance (value) at Sep. 30, 2014	$ 25,992	42,417	2,649	71,058
Balance (value) at Dec. 31, 2014	$ 26,272	43,204	2,743	72,219
Balance (shares) at Dec. 31, 2014	2,427,767
Net income		5,282		5,282
Other comprehensive income (loss)			(210)	(210)
Issuance of common stock through Employee Stock Purchase Plan	$ 102			102
Issuance of common stock, shares, through Employee Stock Purchase Plan	4,358
Issuance of common stock, shares, from vested restricted share grants through stock compensation plans	7,780
Stock-based compensation expense	$ 177			177
Cash dividends declared		(1,937)		(1,937)
Balance (shares) at Sep. 30, 2015	2,439,905
Balance (value) at Sep. 30, 2015	$ 26,551	$ 46,549	$ 2,533	$ 75,633