Per Share Data (Computations of Basic Earnings Per Share and Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Basic Earnings per Share:
Net Income	$ 6,687	$ 6,532	$ 12,992	$ 12,341
Weighted Average Shares Outstanding	13,210,150	12,666,315	13,194,754	12,654,146
Basic Earnings per Share (USD per share)	$ 0.51	$ 0.52	$ 0.98	$ 0.98
Diluted Earnings per Share:
Net Income	$ 6,687	$ 6,532	$ 12,992	$ 12,341
Weighted Average Shares Outstanding	13,210,150	12,666,315	13,194,754	12,654,146
Potentially Dilutive Shares, Net	20,662	16,812	21,330	17,560
Diluted Weighted Average Shares Outstanding	13,230,812	12,683,127	13,216,084	12,671,706
Diluted Earnings per Share (USD per share)	$ 0.51	$ 0.52	$ 0.98	$ 0.97