Business Description, Basis of Presentation and Significant Accounting Policies - Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator:
Net income	$ 1,663	$ 1,004	$ 3,438	$ 2,132
Basic weighted average shares outstanding	9,027,764	9,113,713	9,090,903	9,106,455
Dilutive common stock equivalents using treasury stock method	379,177	79,861	394,905	112,706
Diluted weighted average shares outstanding	9,406,941	9,193,574	9,485,808	9,219,161
Basic earnings per common share	$ 0.18	$ 0.11	$ 0.38	$ 0.23
Diluted earnings per common share	$ 0.18	$ 0.11	$ 0.36	$ 0.23
Weighted average options outstanding	1,143,283	1,215,747	1,131,575	1,195,599
Anti-dilutive options not included in the computations	167,845	799,203	157,197	799,203