Common Stock and Earnings Per Share (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Common Stock and Earnings Per Share [Abstract]
Net income	$ 2,581	$ 2,486
Shares Used in Computing Basic and Diluted Net Income per Share [Abstract]
Weighted average common shares, basic (in shares)	12,851,505	12,821,106
Effect of dilutive securities [Abstract]
Employee stock-based compensation	18	0
Weighted average common shares, diluted (in shares)	12,851,523	12,821,106
Stock Repurchase Program [Abstract]
Number of shares authorized to be repurchased under the stock repurchase program (in shares)	1,200,000
Number of shares repurchased under the stock repurchase program (in shares)	24,329	0
Number of remaining shares authorized to be repurchased under the stock repurchase program (in shares)	630,904