Earnings Per Share (Computation of Basic and Diluted EPS) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Earnings Per Share [Abstract]
Numerator for basic and diluted earnings per share - net income	$ 2,074	$ 2,322	$ 7,050	$ 6,968
Denominator for basic earnings per share - weighted average shares outstanding	3,202,104	3,154,529	3,191,226	3,144,711
Effect of dilutive securities - employee stock options	13,572	14,402	13,605	14,109
Denominator for diluted earnings per share - adjusted weighted average shares outstanding	3,215,676	3,168,931	3,204,831	3,158,820
Earnings per share - Basic	$ 0.65	$ 0.74	$ 2.21	$ 2.22
Earnings per share - Diluted	$ 0.64	$ 0.73	$ 2.20	$ 2.21