Common Stock and Earnings Per Share (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Mar. 11, 2013
Common Stock and Earnings Per Share [Abstract]
Net income	$ 4,182	$ 3,717	$ 8,184	$ 6,530
Shares Used in Computing Basic and Diluted Earnings per Share [Abstract]
Weighted average common shares, basic (in shares)	13,022,088	12,955,656	13,015,842	12,949,036
Effect of dilutive securities [Abstract]
Employee stock-based compensation (in shares)	882	510	579	355
Weighted average common shares, diluted (in shares)	13,022,970	12,956,166	13,016,421	12,949,391
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)	0	0	0	0
Number of remaining shares authorized to be repurchased under the stock repurchase program (in shares)	618,004		618,004